Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Mild asymmetrical thickening of the right rectus abdominis muscle which measures up to 13 mm in depth, when compared to the contralateral side. There is overlying inflammatory stranding with locules of free gas. Within the intra abdominal cavity, deep to the rectus abdominis muscle, there is small volume free fluid and locules of free gas. These findings are presumably within the normal postoperative limits. There is no evidence of active arterial extravasation or delayed enhancement, particularly within the region of the right rectus abdominis muscle.Bulky postpartum appearance of the uterus. No significant free fluid within the pouch of Douglas. Non distended urinary with bladder catheter in situ.Small volume faecal material within the distal sigmoid colon. Mildly prominent gas and faecal filled cecum and ascending colon. Mixed gas and fluid filled small bowel is normal in calibre.Impression:No evidence of active haemorrhage within the right rectus abdominis muscle.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Multiple hyperdense masses throughout the liver with low density rims.The differential is between calcification and contrast enhancement.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: A large area of encephalomalcia and gliosis noted involving cortex and white matter of left fronto-parieto-temporal lobes with smooth gyral calcification resulting in volume loss and ipsilateral cerebral atrophy. Mild exvacuo-dilatation of adjacent left lateral ventricle and mild ipsilateral midline shift appreciated. Findings raise the possibility of dyke-davidoff masson syndrome which may be a sequelae of previous vascular event/ infective pathology.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Abnormal arterial supply to the medial basal right lower lobe, which is supplied directly from the descending thoracic aorta and no supply from the right pulmonary artery. This region is slightly hyperlucent. Adjacent to the aberrant arterial supply are low-density branching opacities. No communication with the tracheobronchial tree is seen. Drainage is via the left inferior pulmonary vein, which demonstrates mixing artifact.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Circumferential, low-attenuation thickening of the distal gastric body and antrum. An area of ulceration can be appreciated along the greater curve of the antrum on the coronal image. No adenopathy. No free fluid or air.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Huge thin-walled peripancreatic collection compressing the lesser curve of the stomach.Normal enhancement of the distal body and tail of the pancreas.The head, neck, and most of the body of the pancreas are non-enhancing.Gallstones.Normal calibre CBD.Small left ovarian cyst. Vaginal ring pessary.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: No scaphoid fracture identified. Scapholunate interval is normal.Incidental eccentric densely sclerotic lesion contiguous with the cortex of the base and proximal shaft of the second metacarpal with well-defined margins. There are similarly indolent appearances on the radiograph. Features are in keeping with melorheostosis.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: CT confirms that the mass is in the anterior mediastinum (lateralized to the left). It is relatively well-circumscribed, with no evidence of invasion of the mediastinal structures, but with irregular interface with the adjacent left upper lobe. It contains air-bubbles (invasion of the adjacent lung parenchyma ?). No significant enhancement seen on the postcontrast sequences.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Pleural effusions, ascites, mild anasarca, and massive ovarian enlargement. The ovaries are replaced with multiple enlarged follicles and corpus luteum cysts.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: 8.4 cm solid-cystic mass centred on the trigone of the right lateral ventricle. This has a lobulated avidly enhancing 4 cm solid component which is closely related to the choroid plexus. The mass extends into the right temporal and parietal lobes.Resultant midline shift.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Old infarction follows the left MCA distribution with negative mass effect upon the left lateral ventricle. Abnormal hypodensity of the left cerebral peduncle with associated abnormal low-density tract extends in between the peduncle to the infarcted area. Likely represents a tract of gliosis which reflects the underlying process of Wallerian degeneration.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Left renal lower zonal large exophytic soft tissue mass lesion. The mass appears heterogeneous with internal cystic areas of breaking down and heterogeneous post-contrast enhancement as well as mural and septal calcifications.This is associated with multiple enlarged left renal hilum and left para-aortic enlarged lymph nodes.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Post-treatment changes as partial colectomy and colostomy with a Hartmann's pouch are seen.Left-sided parastomal hernia is noted.There are numerous low-attenuation hepatic metastatic lesions.The gall bladder is not seen (cholecystectomy).The uterus is not seen (hysterectomy).


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Multiple foci of fat attenuation(HU -6 to -15) noted in the falx cerebri anteriorly and tentorium cerebelli.Anterior falx ossification also noted.Age related diffuse cerebral atrophy and chronic small vessel ischemic changes seen.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Distraction type injury at the craniocervical junction. Fracture-dislocation through the atlas and involving the atlanto-occipital articulations.Basion-dens interval is 29 mm. The usual interval is <8.5 mm on CT.Global reduced attenuation with loss of CSF spaces. There is widespread subarachnoid blood, particularly in the posterior fossa suggestive of traumatic subarachnoid haemorrhage.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: The aorta distal to the origin of the left subclavian artery is elongated and redundant with buckling and apparent luminal narrowing. A small segment dilation of the descending  thoracic aorta distal to the buckling.The heart is normal in size and contour.No dissection or collateral circulation. Anomalous left common carotid arising from the brachiocephalic artery.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: A radiodense mass measuring 20 x 9 x 9 mm in the alveolar mandibular bone, with radiodensities similar to dental enamel and dentin. Irregularly shaped, similar to small denticles. Small odontoma located in the marginal bone distal to remnant tooth 6.3. Agenesis of tooth 3.4 and inclusion of 3.4, located on the other side of the medullary mandibular bone in the apical zone below tooth 4.3.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Bilateral symmetric large subdural fluid collections. Mildly increased left subarachnoid space.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Filling defect within the left distal ICA extending into the entire left M1 segment and proximal A1 segment. Poor opacification in the left M2 segment. ACA territory is perfused via the right ACA.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Dilated, fluid-filled, appendix with irregular enhancement and focal discontinuity along the anterior margin. There area of discontinuity is associated with a small amount of unorganized extraluminal fluid which tracks into the pelvis, likely developing abscess. Reactive inflammation of the terminal ileum with mild upstream dilation of small bowel likely reflecting ileus.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: CT images show the presence of a large mass arising from the lower lobe of the right kidney. The mass is prevalent and hypoattenuating. The excretory phase shows the presence of tiny hyperdensities suggestive of vessels within a predominantly fat-containing mass.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Oval area of peripheral, strandy enhancement and central fat density in the mid abdominal omentum.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Large bony defect posterior to the lumbosacral vertebral bodies with protrusion of the fluid density into the subcutaneous tissues. Neural tissue extends into the lesion and terminates at a neural placode. Absent right kidney.The left kidney is significantly enlarged with two ureters. The lower ureter crosses the midline and inserts in the urinary bladder at the expected location of the right ureteric orifice.Major blood vessels appear normal.  No ascites or pneumoperitoneum. Vertebral bodies appear normal.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Coronal and axial sections of CECT, delayed phase with positive rectal contrast show bowel within bowel appearance at left lumbar and left iliac fossa region with pull of mesenteric fat and vessels within suggestive of colo-colic intussusception.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: CHEST CT SCAN WITH CONTRAST ENHANCEMENT: There is a spiculated solid mass about 2.2 cm in diameter in the left hilum consistent most likely with central bronchogenic carcinoma.Two enlarged lymph nodes are seen at the aorta-oulmonary window the largest measures 2.5 cm in its long axis.Fine nodular pleural thickening is seen in the right side superiorly and anteriorly, so pleural metastases could not be excluded.No definite evidence of pulmonary metastases.No evidence of pleural effusion.No evidence of bony metastases.Dense spiculated lesion within the right breast with overlying skin thickening is seen due to the known malignancy.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Mesenteric adenopathy and haziness, several lymph nodes have lower attenuation centrally. Mild retrocrural and retroperitoneal adenopathy.  Splenomegaly with subtle areas of hypoenhancement anteriorly. LLL opacity.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: A soft tissue lesion is seen in the posterior aspect of the nasopharynx. It impedes the nasopharyngeal air column as well as posterior nasal choana. It is likely represents adenoid enlargement.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: There is a well defined intensely enhancing mass seen at the left common carotid artery bifurcation,with splaying of the internal and external carotid arteries.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: A large, solid, lobulated, heterogeneously enhancing mass with central areas of necrosis arising from the retroperitoneal soft tissues in the right iliac fossa. This mass measures 12 x 12 cm and is extending inferiorly along the femoral vessels into the femoral triangle. Mass effect is seen on the iliac vessels and pelvic viscerae. Eroded medial cortical outline of the right iliac blade with a soft tissue mass involving the right iliac blade and roof of right acetabulum. A few small lymph nodes with the largest one measuring 8 mm are seen along the anterior aspect of the IVC & right common iliac artery at the L5 level; no other significant lymphadenopathy or abdominal visceral pathology is seen. Impression: Malignant looking right iliac fossa retroperitoneal soft tissue mass (soft tissue sarcoma?) with bone (local invasion of the right iliac blade) and pulmonary metastases (multiple bilateral lung nodules).


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: There is a markedly dilated and twisted U-shaped loop of ileum seen in the pelvis with the twisting point located deeply in the pelvis posterosuperior to the urinary bladder. Tapering of the small bowel loops at the point of obstruction (double beak sign) is noted. The small bowel loops are dilated proximal to the point of obstruction and collapsed distal to it.The mesenteric vessels supplying the mentioned loop showed no contrast opacification, and there is markedly reduced wall enhancement in the obstructed/closed ileal loop compatible with ischemia/strangulation. No definite pneumatosis intestinalis, portal vein gas or pneumoperitoneum.Mild ascites is seen mainly around the closed loop.No definite masses or enlarged lymph nodes. There are two calcified gall bladder stones. The CBD is mildly dilated proximally with distal tapering.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: An incidentally discovered well-circumscribed mass in the left adrenal gland, with fat-containing components.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: There is a hypervascular pancreatic lesion located in the head of the pancreas, measuring 14 × 11 mm, best appreciated on the arterial phase images.A small hypodense lesion, 5 mm in diameter, is seen at the left lobe of the liver. No apparent enhancement is noted on postcontrast images.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Intraperitoneal bladder protrusion into the right inguinal canal.Indirect inguinal hernia medially to the iliac-femoral vessels with extrusion of the anterior wall of the bladder with preperitoneal fat.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Serial CT images show inflamated ileal segments. Meckel's diverticulum can be seen due to bowel edema. There is minimal fluid between bowel segments.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Mild amount of peri-splenic / pelvic free fluid, which is hyperdense denoting hemorrhagic nature.The lower pole of the spleen shows ruptured parenchymal hematoma (measuring about 5.2 cm in its maximum dimension) with few short lacerations involving the both splenic surfaces. No evidence of vascular injury or active contrast extravasation. (Grade III splenic injury, AAST splenic injury grading system)No other solid organ injury.Note (in the bone window) mildly displaced fractures of the left 9th, 10th  & 11th ribs.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Non-contrast CT of the abdomen revealed: moderate to marked dilatation of both intra and extrahepatic radicles dilated CBD reaching 20 mm, with two distal hyperdense obstructing stones average size of the pancreas with mild interstitial edematous changes and minimal peripancreatic fat stranding multiple encysted peri-pancreatic peritoneal collections mainly at perisplenic space, lesser sac and gastro-hepatic ligament minimal left basal pleural effusion


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Luminal contrast extravasation superiorly within the descending colon (just inferior to the splenic flexure) on the portal venous and arterial phases. Appearances in keeping with active colonic bleeding.No other acute pathology.2 x Seton sutures in situ (visible on the arterial phase).


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Laceration about 5 cm deep and involving the inferolateral aspect of the spleen and into the hilum. Active contrast extravasation indicating ongoing haemorrhage. 4.8 cm deep perisplenic haematoma. Large volume haemoperitoneum in the subphrenic space and pelvis. Left 9th and 10th rib fractures. Cholecystectomy. No other solid organ injury. Bowels are unremarkable. Bladder partially not seen due to metal artifact from hip replacements.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: There is a tubular, round-edged structure arising from the caudate of the liver and extending medially adjacent to the posterior surface of the stomach and superior surface of the pancreatic body. It is homogeneous and continuous with the liver, suggesting a prominent papillary process of the caudate lobe.Also noted are subcutaneous emphysema and multiple calcified gallstones.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Left adrenal mass measures -2 to +1 HU in density overall with focal areas of macroscopic fat present. There is some peripheral coarse calcification.Normal right adrenal gland. Large right upper pole simple renal cysts. Cholecystectomy clips. Extrahepatic duct dilatation. Partially evaluated fat stranding and prominent lymph nodes of the small bowel mesentery is suggestive of mesenteric panniculitis.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: A large amalgamated retroperitoneal periaortic soft tissue mass/sheet-like lesion. It is seen encasing the aorta and both common iliac arteries, associated with mild compression, yet no evidence of significant stenosis.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: There is a fairly well circumscribed lobulated hyperdense intra-axial space occupying lesion in left area centrum semiovale extending towards corona radiata creeping along the body of left lateral ventricle reaching upto the left basal ganglia and thalamus with suggestion of possible subependymal infiltration in body of the left lateral ventricle. This is measuring approximately 4.0 x 2.3 cm in AP and TR dimensions. There is associated significant disproportionate vasogenic edema in left cerebral hemisphere including basal ganglia and thalamus, causing mass effect resulting in effacement of the left lateral ventricle and mild contralateral midline shift of 0.3 cm. Another focal area of vasogenic edema is present in right corona radiata.In keeping with history of treated carcinoma of the breast, imaging features are highly suggestive of brain metastasis. Other differential would include cerebral abscess. Contrast enhanced MRI is recommended for further evaluation.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Large right sided intracerebral haematoma.  It involves both deep and lobar structures (frontal lobe, basal ganglia and midbrain).  Its epicentre is difficult to determine but probably within the right frontal periventricular white matter.  There is subarachnoid and ventricular extension. The haematoma is irregular but there are no finger-like projectionsThere is significant mass effect relating to the haematoma and perihaematomal white matter oedema causing midline shift, compression of the ipsilateral lateral ventricle and third ventricle and effacement of ipsilateral cortical sulci. There is dilatation of the temporal horns of the lateral ventricles in keeping with hydrocephalus.Moderate periventricular low attenuation probably in keeping with small vessel disease +/- transpendymal CSF spreading.  Moderate cortical atrophy.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: 2 cm well-defined rounded image located in the fundus portion of the gallbladder, in the venous phase there is a partial enhancement at the periphery.Partial pancreatectomy.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Aberrant right subclavian artery with a common origin of bilateral common carotid arteries. Few small mediastinal lymph nodes are also noted.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Marked diffuse calcified atheromatous plaques involving the aorta, celiac, superior and inferior mesenteric arteries.Dilated small bowel loops with mild diffuse wall thickening and gas density seen in the bowel wall ( pneumatosis intestinalis).Multiple peripheral linear branching gas density inside the portal vein and its branches, superior mesenteric vein and its mesenteric tributaries (pneumatosis portalis).High density of the left adrenal gland denoting adrenal haemorrhage. Multiple linear non enhancing areas seen at the splenic and renal parenchyma. Stranding of the mesenteric fat and mild free fluid.Decreased enhancement of the bowel loops with complete loss of enhancement of ileal loops (bowel infarction).


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Bilateral ureteropyelocaectasia with bladder distension. Hypodense mass with presacral peripheral enhancement in the region of the right piriformis muscle and displacement of the rectum to the left.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: In the brain there are three ring-enhancing lesions: one in the right frontal lobe and two in the left frontal lobe. The ventricles are normal in size and appearance. There is no midline shift. The basal cisterns are unremarkable. There is a small amount of fluid in the right ethmoid sinus with loss of the lamina papyracea at this location. There is mild mucosal thickening of the left maxillary antrum. The remaining imaged paranasal sinuses are clear. There is no bony destruction. The orbital contents are unremarkableIn the chest, there are innumerable cavitating lesion throughout the lung with air fluid levels. The pleural spaces are clear. The mediastinal structures are unremarkable with no lymphadenopathy. The pericardial space is clear.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Small pericardial effusion with nodules. Diffuse soft tissue thickening of the stomach without obstruction. Small retroperitoneal mass inferior to the left kidney. Right orchiectomy due to lymphoma. Heterogeneous left testicle possibly involved. Few small nodules in the left medial gluteal and thigh subcutaneous tissues.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: CT guided biopsy of the fibular lesion after the tibial fracture had healed. Tissue sent to pathology.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Horseshoe kidney with mild pelvicalyceal dilatation. Inferior vena cava duplication. No traumatic injury.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: acute right subdural hemorrhage with right-to-left shift right subdural membrane(s) bilateral extra-axial fluid collections right subfalcine herniation


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Multiple arterial hyperenhancing lesions within the duodenum and pancreas with diffuse mucosal thickening of the stomach.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Wedge-shaped hypoattenuation in the inferior aspect of the right cerebellar hemisphere with loss of grey-white matter differentiation, consistent with a PICA territory infarct. Dense vessel sign in the right vertebral artery at the foramen magnum. No tonsillar herniation or fourth ventricular effacement.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Large loculated pleurally based collection containing a large volume of gas. This is located postero-inferiorly extending into the right oblique fissure producing marked pleural thickening and enhancement. There is suspicion for a pleuroparenchymal fistula.Right lower lobe subsegmental compressive atelectasis is present.12 mm focus of consolidation in the posterior segment of the right upper lobe.4 mm calcified right hilar lymph node. The remaining mediastinal and hilar lymph nodes are unremarkable with no evidence of lymphadenopathy.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: CTA demonstrates multiple filling defects at the bifurcation of the pulmonary trunk (saddle pulmonary embolism) extending to the segmental branches of both pulmonary arteries.There is also a large filling defect in the superior mesenteric artery (SMA) compatible with thrombus which extends into the abdominal aorta.The right heart chambers are dilated.There are patchy and well demarcated hypodense areas due to hypoperfusion of the both renal parenchyma representing infarction.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Initial CT showed a bony destruction of the right temporal bone, followed by a contrast-enhanced study with a depiction of tumor expansion in the temporal region.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Cirrhotic appearance of the liver with several masses and nodules in the right lobe suggesting multifocal HCC. Thrombosis of the portal vein, also involving intrahepatic branches in the right lobe. Signs of chronic portal hypertension: gastric and esophageal varices, ascites. Atrophic pancreas.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: The kidneys showing bilateral duplex renal pelvis and partial duplex ureters more evident on the right side (bifid ureters).The liver is average in size with a left lobe non-enhancing hypodense fat containing lesion that could be a lipoma of the liver. No other focal lesions or IHBR dilatation. Postoperative changes are noted in the stomach as before. No abnormal wall thickening or mass lesion could be seen.Unremarkable CT features of CBD, portal vein, pancreas, spleen, adrenal glands, and IVC, aorta, and rest opacified bowel loops. Evidence of cholecystectomy. No significant para-aortic, mesenteric, pelvic, or inguinal lymph nodes. No ascites. Unremarkable CT features of urinary bladder, uterus, and both adnexa.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: The stomach and the majority of the small bowel is dilated and fluid filled down the right iliac fossa at the site of a closed loop obstruction.  The distal ileum is collapsed.Partial reduction in the enhancement of the loop of small bowel in the closed-loop.  Small amount of perienteric inflammatory change and free fluid.No free gas or collection.Small amount of free fluid in the pelvis. Simple cyst in the right kidney. Normal appearance of the liver, spleen, pancreas, both adrenals.Right middle and lower lobe consolidation with small associated pleural effusions.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: There is a comminuted fracture involving the anterior inferior aspect of the C5 vertebral body with mild anterior displacement of the fracture fragments and mild vertebral body loss of height anteriorly from inferior endplate compression. This results in a focal mild cervical kyphosis. There is no fracture extension into the posterior elements.   Mild narrowing of the C5-C6 intervertebral disc space. There is widening of the C5-C6 interspinous distance posteriorly with the fat stranding and low-attenuation change in the soft tissues suggestive of ligamentous injury. Subtle distraction of the facet joints. There is no obvious epidural hematoma identified within the limits of this CT resolution. No significant central canal stenosis.There is minimal superior endplate depression of T1-T5 vertebral bodies. An undisplaced fracture of the anterior cortex of the manubrium is also noted.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: A large well-defined fat-ontaining mass lesion was noted in the right adrenal gland. Soft tissue elements (myeloid components) were noted in the tumoral mass. After IV contrast media injection, mild enhancement is evident at these areas. The right kidney is displaced posteroinferiorly . Local invasion was not evident. Another smaller fat containing lesion was seen in the left adrenal gland.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Extensive venous thrombosis. On the right, it extends from the right femoral vein while on the left it commences in the proximal external iliac vein. The is distended with thrombus measuring 1.6 cm and extends into the right renal vein and segment 6 of the liver then finishes just below the right atrium.No solid organ infarct.No other abnormality.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Right middle lobe lateral segmental consolidation/collapse with ipsilateral hilar, precarinal and paratracheal lymph nodes.The lymph nodes have a hypoattenuating center with rim enhancement.Endobronchial lesion severely narrowing the right middle lobe bronchus.Bilateral pulmonary nodules.Severe loss of height of T5 vertebral body resulting in mild kyphosis (Gibbus deformity).


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Bilateral well-defined complex ovarian cystic lesions are noted. They have a heterogeneous matrix with different components; the lesions are mainly cystic with multiple thin enhanced septa of variable thickness, areas of fat density, minute dots of calcifications at the periphery and small enhancing soft tissue nodular projection into the lumen (Rokitansky nodule) evident in the left-sided lesion.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Abnormal hyperdensity is noted in the right basal ganglia involving the caudate nucleus and lentiform nuclei. There is no brain edema. No hydrocephalus.No intra cranial hemorrhage.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: CT scan performed three days after the 2nd MRI exam revealed: multiple mediastinal and left hilar lymphadenopathy as well as para-aortic small spiculated mass (26x21 mm) in the lingula which may represents the primary tumour left pleural irregular nodular thickening (pleural metastases) bilateral adrenal nodules (adrenal metastases) numerous diverticula of the colon/sigmoid are noted


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: CT CHEST2 cm mass in the right lobe of the thyroid.The lungs contain multiple nodules/masses, up to 3.4 cm. These are 'cannonball' in appearance.No abnormal mediastinal nodes.CT ABDOMENThe left kidney is diffusely enlarged with abnormal morphology and attenuation. The tumour extends into the left renal vein. No normal residual left renal tissue.Multiple enlarged left renal hilum and left para-aortic nodes.Porcelain gallbladder.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: There is localized dilatation of the intrahepatic biliary radicals of the right hepatic lobe. Two right hepatic lobe necrotic focal lesions were seen as a result of successful radiofrequency ablation done 1 month prior to study.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Extensive splenic lacerations extending to the hilum with areas of devascularisation. No evidence of active bleeding or pseudo-aneurysm. There is extensive haemoperitoneum throughout the abdominopelvic cavity. Cholecystectomy clips are noted along with extrahepatic and first order intrahepatic duct dilatation. Liver is uninjured. Adrenal glands, kidneys and pancreas are uninjured. Bowel is unremarkable. Lung bases are clear. No bony injury identified. Conclusion: AAST grade IV splenic injury with extensive haemoperitoneum.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Mildly enlarged liver with irregular outline, deepened fissures and prominent caudate lobe. An exophytic focal lesion measuring about 10 x 10 cm noted in segment VII and showing early arterial enhancement and delayed washout with localized perilesional and perihepatic mild collection producing a typical sentinel clot sign ( US guided aspiration revealed bloody collection) denoting its rupture. No extra or intrahepatic biliary channel dilatation.Moderate free ascites.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Superior vena cava is not identifiable on this scan, instead a rich collateral network of smaller veins is demonstrated. The majority of blood flow is seen to be diverted into the azygos-hemiazygos-accessory hemiazygos system (these veins are densely opacified), left renal vein (which is also significantly dilated and measures around 25mm) and finally into inferior vena cava. Chest wall, mediastinal, diaphragmatic and vertebral venous plexuses are also opacified as a sign of SVC obstruction.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Computed tomography of the thorax shows an infiltrative cardiac expansive lesion, centred on the right atrium, invading the superior vena cava. There are also innumerable solid pulmonary nodules, bilateral, suggestive of involvement secondary dissemination.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: CT for this adolescent polytrauma patient showed: Longitudinal fractures of both petrous temporal bones more evident on the left involving the mastoid. Disrupting fracture of the sphenoid bone with haemosinus of the sphenoids and ethmoids, with consequent pneumocephalus and pneumorrhachis.Effaced cerebral ventricles and basal cisterns with no midline shift. Cerebral contusion of the left posterior parietal lobe as well as associated with subarachnoid haemorrhage. Follow up by CT two days later showed: absence of pneumocephalus and pneumorrhachis.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Spiculated nodule within the lingula segment of the left upper lobe. Separate enlarged left hilar lymph nodes resulting in high-grade pulmonary artery stenosis, likely to a point of focal occlusion of central left lower lobe pulmonary arterial branches. Left hilar nodal disease results in moderate extrinsic narrowing of the central left lower lobe airways. The subcarinal node is mildly prominent measuring 13 mm in short axis.A linear structure running through the left mediastinum, although non-contrast filled (right upper limb contrast injection) appears to represent a left-sided SVC arising from the left brachiocephalic vein, draining into the coronary sinus.Within the left lower lobe, there is an ill-defined 10 mm pulmonary nodule. Within the right middle lobe, a small triangular nodule arising from the undersurface of the horizontal fissure is typical for a small peri-fissural nodule. No pleural effusions. No pericardial effusion.Conclusion: Spiculated solid lingula pulmonary nodule is concerning for primary lung cancer with associated left hilar nodal metastases.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: The left renal vein is seen coursing between the aorta and superior mesenteric artery with an 8 mm length of focal narrowing (axial, sagittal). The renal vein proximal and distal to the area of narrowing is similar in size as to the right renal vein; in which both appear prominent. There are dilated vascular structures posteromedial to the left kidney, which most likely are venous. There are also multiple dilated vascular structures in the left pelvis, with dilated vascular structure extending from the left adnexa into the right adnexa/pelvis. The enhancing vascular structures within the pelvis most likely represent veins, however, this is somewhat indeterminate due to opacified iliac arteries without opacification of the iliac/femoral veins. There appears to be an opacified prominent left gonadal vein.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Partial herniation of the anterior aspect of the urinary bladder into the right inguinal canal without evidence of complication.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: A 55×40mm fat density exophytic mass is present at anterior aspect of left kidney.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Multiple thin-walled cystic lesions are seen at pancreas, the largest one measuring 38 mm at the pancreatic head. Fine foci of calcification are noted at pancreatic neck cyst. The pancreatic duct is not dilated.A 50 mm well defined heterogeneous solid-cystic mass is seen at upper portion the of left kidney. The mass has small foci of calcification and contrast enhanced is noted at solid portions. At least two similar smaller lesion are seen at lower portion of the same kidney and there are two 35 and 27mm similar masses at upper portion of the right kidney. A few small cortical cysts are noted at both kidney too. There is no sign of vascular invasion.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: CT scan reveals a hypodensity of the ventral and central portions of the pons. This is suggestive of a brainstem (pontine) infarct most commonly caused by thrombosis of the basilar artery.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Duplex right kidney. The ureter draining the upper moiety having an ectopic insertion at the prostatic urethra with resulting chronic obstruction and marked back pressure changes. The obstruction is chronic manifested by the markedly dilated and tortuous right ureter draining the upper moiety. There is also thinning-out of the upper moiety renal parenchyma, also a sign of long term obstruction.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Small umbilical hernia containing omental fat. There is a small amount of fat stranding in the fat just subjacent to the hernia. No bowel demonstrated within the hernia. There is a small fat-containing inguinal hernia bilaterally. Fatty infiltration of the liver.Ovoid 2.5 x 2.5 x 2.5 cm low-density lesion (8-15HU) arising from the lateral limb of the right adrenal gland is probably an adrenal adenoma (the study was only obtained in portal vein phase). The left adrenal gland is normal. The remainder study is unremarkable.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: 4cm rim enhancing cystic lesion in the left cerebellar hemisphere. Moderate perilesional oedema.The 4th ventricle is effaced and displaced to the right. Prominence of the temporal horns.The venous sinuses opacify normally.   Normally aerated mastoid air cells.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Poorly-marginated fluid-density lesion in right hepatic lobe that shows peripheral and wispy central enhancement that suggests septa within the lesion. No other liver abnormality seen.Lung bases show bilateral peripheral small pulmonary nodules in addition to left lower lobe (LLL) wedge-shaped small density. The findings are suspicious for septic pulmonary emboli and small consolidation, respectively.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Depressed fracture of the right parietal bone. No underlying extra-axial or intracerebral hematomas.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: There are disruption and distraction of the normal C6-C7 facet joint alignment associated with widening of the interspinous distance and retrolisthesis of C7 vertebral body.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Anterior shoulder dislocation with impaction onto the glenoid, resulting in Hill-Sachs and bony Bankart lesions.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: An aortic dissection is seen involving the aortic arch distal to the left common carotid artery, extending inferiorly to involve the descending aorta, abdominal aorta and common iliac arteries bilaterally. Involvement of the proximal segment of the left subclavian artery with normal contrast opacification of the artery distal to the stenosis. The process extends more down significant involvement of the left renal artery with non-enhancement of the upper and mid poles of left kidney indicating an infarction. Multiple atheromatous calcifications are noted in the aorta and its iliac branches.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: CT confirms right middle lobe overinflation with accompanying mass effect on local lung parenchyma and secondary collapse as well as mediastinal shift to the left. The degree of hyperexpansion is much better demonstrated at CT.Rib fractures confirmed.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Circumferential thickening of the distal ileum with a small focus of contrast extravasation in the terminal ileum ~ 8-10cm from the ileo-caecal junction that pools on the PV phase.  Note also on the PV phase that all the muscosa of the distal ileum enhances markedly indicating active inflammation.  Note also hyperdense bowel content in the distal ileum and colon including the rectum indicative of fresh blood.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: 8.2cm juxta-renal AAA, the superior aspect of the sac is at the level of the origin of the left renal artery. The aneurysm extends to the aortic bifurcation.High attenuation fluid in the left side of the retroperitoneum and surrounding the aneurysm sac.Contrast extravasates from the aneurysm sac between 2 and 3 O'clock.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: The whole stomach is markedly dilated with air and fluid seen inside, the duodenum is seen partially collapsed, yet no CT evidence of definite masses. A small gastric focal protrusion is seen medially close to the gastro-oesophageal junction that could be a gastric ulcer. The ileal small bowel loops are seen in the right side of the abdomen, mostly by the effect of the dilated stomach. Incidental uncomplicated small sigmoid colon diverticula and small sized right kidney that shows tiny hypodensities suggestive of renal cysts.No other gross abnormality seen.The main findings are suggestive of gastric outlet obstruction.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: There is a large, ill-defined hypo-attenuating area with loss of gray-white matter differentiation involving the right cerebral hemisphere with an irregular hyper-attenuating area of blood density within and also extending to the right lateral ventricle. Right proximal MCA is hyper-attenuated: “Hyperdense MCA”.The significant mass effect is evidenced by the effacement of the ipsilateral Sylvian fissure, adjacent cortical sulci, lateral ventricle with midline shift toward the contralateral side.  Subfalcine herniation also noted.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Incidental findings of: crossed fused renal ectopia with malrotated left kidney lying centrally and fused to lower pole of malrotated right kidney duplicated inferior vena cava Small amount of free fluid adjacent to tip of right hepatic lobe as well as in the pelvis, however no other signs of abdominal organ trauma or bony fracture noted.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Traumatic dislocation of the lens can be seen with extensive oedema and subcutaneous emphysaema of the left periorbital soft tissues.No intra- or extraconal pathology detected.There is no obvious vitreous haemorrhage.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Scout image shows paperclip in right posterior hip and left thigh, indicating entry and exit wounds. Old bullet fragments project over the right lower chest. Bullet trajectory: right posterior hip through iliac bone, right iliacus with small foci of active extravasation, mesentery with active extravasation, left thigh.Follow the SMA - it loses flow at the level of the upper iliac bones due to injury. There is flow in the ileocolic branches, and therefore enhancement in the TI and cecum. However, the distal ileal branches are completely out. Following the TI retrograde, you will end up in indistinct, hypoenhancing small bowel in the right lower quadrant. Hypoenhancement of several segments of ileum in the right lower quadrant, which are difficult to distinguish from the hemoperitoneum. Probable contusion along the bladder dome.Large amount of hemoperitoneum.Cleft in liver and spleen.  Delayed images: accumulation of extravasated contrast in the mesentery.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Diffusely dilated small bowel. Gradual dilution of oral contrast through obstructed bowel. Transition point at intussusception in the central pelvis leading into a short segmental of irregular fluid-density mass.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: There is an irregular mass in the distal sigmoid colon, with a tract extending from this mass into nearby rectosigmoid junction. Regionally there is an irregular, heterogeneous and enlarged lymph node. Colonic diverticulosis is present. No distant metastases are shown. Conclusion: Distal sigmoid carcinoma, fistulating into nearby rectosigmoid junction.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: There is an avulsion of the capitellum with rotation and posterior displacement well-visualized on sagittal reconstruction with an associated cortical avulsion. The anterior humeral line passes completely anterior to the capitellum. The ossification center of the capitellum is intact. A joint effusion is noted.No other associated fracture is seen.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: There is complete agenesis of the corpus callosum with a left parasagittal cyst communicating with the 3rd ventricle suggesting interhemispheric cyst.The lateral ventricles are widely spaced with mild dilatation of the occipital horns more on the right compatible with mild colpocephaly.No intracranial lipoma. No evidence of Schizencephaly. No dilatation of temporal horns of lateral ventricles. Normal posterior fossa structures.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Findings: Average size liver with multiple focal hypodense lesions. These lesions show marked peripheral enhancement on arterial phase of the scan. No obvious internal enhancement is seen in these lesions on any phase of the imaging. No biliary dilatation is seen. Small focal left adrenal gland lesion with attenuation values matching lipid-rich adrenal adenoma. Small bilateral renal cysts.Impression: Multiple focal hepatic lesions suggestive of hepatic metastases.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: There is an abnormal net of vascular channels at the porta hepatis, enhancing on the PV phase only.Splenic vein is not visualized and the spleen is diffusely non-enhancing / infarcted.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: CT confirms a 7 x 2 x 4 cm lytic lesion in the left iliac crest.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: A few tiny gallstones are seen less than 5mm. Mild hydroureteronephrosis is present at right side due to an 8×4mm distal ureteral stone (603HU), adjacent to the VUJ. A 3mm stone also is present at lower calyces of the left kidney. 82×76mm fat containing mass with well-defined and smooth margins is present at left adnexa containing a soft tissue nodule.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: CT scout The scout shows moderate cardiomegaly with widened superior mediastinum and increased pulmonary vascularity. Heart    situs solitus, the cardiac apex to the left  atrio-ventricular and ventriculoarterial concordance  great vessel relationship: normal  small ostium secundum ASD is noted  intact IVS  moderate cardiomegaly is noted with moderate right-sided dilatation  no pericardial effusion    Aorta   the ascending aorta arises from the left ventricle and measures about 0.86 cm at its maximum diameter (at the level of the main pulmonary artery) left sided aortic arch that gives rise to three orderly branches (the left subclavian, the left common carotid, and the brachiocephalic arteries) with normal distribution of its branches. The aortic isthmus measures about 0.65 cm at the level of left subclavian artery’s origin. the descending aorta is seen running in the left paravertebral space.  Normal origin and distribution of the coronary arteries. no evidence of thoracic or abdominal coarctation no PDA  Pulmonary arteries & veins   antegrade continuity between the right ventricle and main pulmonary artery.  confluent mildly dilated main pulmonary artery and its both branches. the MPA is uniform in caliber that measures about 1.52cm in diameter the LPA shows mild stenosis that measures about 0.82cm in diameter, while distally it measures about 1.00cm in diameter the RPA is uniform in caliber that measures about 0.94cm in diameter   supra-cardiac total anomalous pulmonary venous drainage: the four pulmonary veins are draining into a confluent chamber that measures about 1.1 X 3.7 cm behind the left atrium which opens into a vertical vein that measures about 1.03 cm in diameter and about 2.69 cm in length which opens into the left innominate vein which opens into the markedly dilated SVC that measures about 1.94 cm in diameter. No evidence of pulmonary vein stenosis  Venae cava & innominate veins   normal course of the innominate veins, SVC and the visualized segment of IVC  no left SVC  SVC receives azygos vein  Lungs   congested both lung fields  no pleural sac collections


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: A well-defined mesenteric mass-like lesion is seen with misty fat attenuation involving the small bowel mesentery. Few small lymph nodes are also observed.Simple liver cyst .Mild ascites in the right paracolic gutter and pelvis.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: There is irregular wavy contour of the liver with, no definite focal lesion seen.Splenomegaly is noted with large number of varices and dilated veins seen at the gastroesophageal junction and in the splenorenal region (spleno-renal shunt). Dilated portal vein, splenic vein as well as the left ovarian vein down to the pelvis where tortuous dilated parauterine vessels are seen. Findings are in keeping with portal hypertension.Congested mesenteric vessel mostly secondary to the above mentioned portal hypertension.Dilated IVC seen with patent IVC and hepatic veins, with multichamber cardiomegaly seen in the imaged chest.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Left hilar soft tissue without obstruction. Bilateral retroperitoneal/perirenal masses. Presacral and extraperitoneal pelvic/space of Retzius masses. Subcutaneous and muscular (right paraspinal) masses. Multiple bone lesions.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Intraocular lens implant is seen as a thin linear hyperdensity in the right ocular globe.There is a normal oval shaped hyperdense native lens in the left ocular globe.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Few small locules of free intraperitoneal air. Visible ulcer channel arising from the cranial aspect of the gastric antrum with small extraluminal collection. Fluid and stranding in the porta hepatis with hepatic subcapsular collection containing mostly conforming to the right hepatic lobe. Dilated and inflamed gallbladder, which could represent reactive inflammation given the adjacent perforated ulcer or an additional diagnosis of acute cholecystitis. Calcifications within the gallbladder wall suggesting porcelain gallbladder.After administration of oral contrast, there is increasing, higher density of the subcapsular fluid and fluid just outside of the lumen of the site of perforation in the cranial aspect of the gastric antrum. For example, Hounsfield units after contrast administration just outside of the lumen of the gastric antrum measures 52 versus 6, and within the hepatic subcapsular collection 29 versus 9. This confirms spillage of ingested oral contrast into the spaces due to ulcer perforation. There is also increasing free intraperitoneal air.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Inverted V-shaped foreign body consistent with a chicken bone in the anal canal without substantial surrounding inflammation


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: CT demonstrates the intussusception of the transverse colon and splenic flexure into the descending colon. There is a well-defined, lobulated lipomatous lesion (-20 HU) most compatible with lipoma at the leading point. The lesion was measured 47x40 mm.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: The liver, gallbladder, spleen, aorta, IVC, right adrenal glands, and kidneys are normal. Small simple cysts incidentally noted at the upper pole of the right kidney. No intra-hepatic biliary dilatation. The common duct is dilated up to 14 mm in diameter but does taper down to 7 mm at the ampulla.There is a 15 x 18 x35 mm low-density mass seen within the left adrenal gland which has not changed in appearance compared with the outside scan from 2 years ago - attenuation inferior to 10HU. Within the body of the pancreas, there is low-density mass lesion seen measuring 24 x 25 x 21 mm consistent with the history of known pancreatic carcinoma. Adjacent macrocalcifications seen within the pancreas.There is abnormal soft tissue material seen around the proximal celiac axis and adjacent to the proximal SMA suspicious for metastatic disease. This appears separate from the primary pancreatic mass. No other evidence of metastatic deposits within the abdomen.  No other lymphadenopathy in the abdomen pelvis or retroperitoneum.The bowel has a normal appearance.  Normal appendix.No ascites.No suspicious bone lesions.Comment:Low-density mass within the body of the pancreas consistent with a history of primary pancreatic malignancy with metastatic disease suspected around the celiac axis and adjacent to the proximal SMA.Stable mass within the left adrenal gland.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: There is marked hyperdensity of the superior sagittal sinus, straight sinus and vein of Galen with the density reaching up to 70HU in the vein of Galen. There is no CT appreciable intracranial haemorrhage or established ischemic infarction. The CSF-containing spaces including cisterns and ventricles are symmetrical and age-appropriate. There is no hydrocephalus. There is no midline shift or intracranial mass.  Conclusion  Marked hyperdensity of the cortical veins, straight sinus, vein of Galen.This is in keeping with venous sinus thrombosis until proven otherwise. Emergency MRI study is recommended.


Question: <image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image><image>Given a series of medical images, describe the key abnormalities, including the anatomical regions involved, any unusual structures, densities, or masses, and suggest possible diagnoses based on these findings.

Response: Motion degraded exam. Acute interstitial pancreatitis evidenced by unorganised, acute peripancreatic fluid/stranding with a mildly dilated main pancreatic duct. No areas of hypoenhancement to suggest a necrotizing component. Portal, splenic, superior mesenteric veins patent.Cholelithiasis with several small stones within the cystic duct. Mild gallbladder wall thickening with pericholecystic fluid. Small gallstone within the distal common bile duct a few centimeters above the ampulla (this can be particularly well appreciated on coronal reconstructions).Lung findings were imaged separately. Massive amount of stool in the rectum with rectal wall thickening. No surrounding stranding or fluid.