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Fundus photograph of the left eye at presentation. Left eye showed large preretinal, intraretinal and subretinal hemorrhages involving the inferior part of the macula, inferior temporal arcade, nasal and superior parts of retina and edema at the optic nerve head. Vascular changes included significantly increased tortu... | |
Results of fluorescein angiography of the right eye of a patient, aged 64, diagnosed with systemic sclerosis 8 years ago. In the arterial phase delayed filling of choroidal lobules with fluorescein in the central macular and along the upper temporal arcade may be noted, that persists up to the venous phase
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Head magnetic resonance image. Coronal TSE T2-weighted image demonstrates a cyst-like posterior paramedian parietal hemorrhagic contusion (black arrow) and parieto-occipital and temporobasal cortico-subcortical focal areas of low signal intensity (white arrows).
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SE, T2WI, axial plane. Typical pattern of X-ALD with involvement of the callosal splenium and occipital and parietal lobes.
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Brain magnetic resonance imaging after the onset of seizures.
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A CT scan on admission showing a subcortical ICH on right temporo-parietal lobe. CT = computed tomography; ICH = intracranial hematoma.
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The frontal CT scan of the head and neck region (section in the retromolar region) illustrates bilaterally trapped air into the soft tissue reaching from the temporal fascia through to the supraclavicular region.
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Brain MRI of second patient at the age of 18 months (T2 weighted sequences TR/TE 4510/119). Note the increased signal in the periventicular white matter around the occipital horns of the lateral ventricles with enlargement of both lateral ventricles and the subarachnoid spaces.
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Brain magnetic resonance image of sagittal T1W1 showed normal features.
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Brain CT. Calcifications of thalamus (c), caudate nucleus (d), putamen (es), white matter of centrum semiovale (f), grey matter of brain fissures (g)
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Postoperative CT scan of brain showing massive intracerebral bleed
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MRI of the brain in sagittal section showing hyperintensities at the cervicomedullary junction (white arrow).
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High-resolution (3T) coronal MRI T2 weighted sequence showing signal hyperintensity and volume atrophy in the left hippocampus (arrow) compared to the right, suggesting left hippocampal sclerosis.
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The brain MRI in T2 flair showed the resolution of the central pontine lesions.
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Axial CT scan: The lesion formed an angle on the level of the infratemporal fossa and the anteroexternal pericochlear bone showed signs of lysis, with a quasidenudation of the external bone wall of the basal turn of the cochlea in its anteroinferior part. Axial slide close to the geniculate ganglion.
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MRI of the brain with contrast showing widespread leptomeningeal enhancement (arrows) raising suspicion for leptomeningeal carcinomatosis.
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Magnetic resonance imaging of the brain showing ring enhancing lesion in the left cerebellum with mass effect on the fourth ventricle, on initial presentation.
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Severe brain atrophy in a patient with biotinidase deficiency
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Magnetic resonance imaging brain (three-dimensional constructive interference in steady-state sequences) showing the loop of superior cerebellar artery (black arrow) abutting the root entry zone of the right trigeminal nerve (white arrow). Further, the right fifth nerve is atrophic as compared to the left side (arrowh... | |
Preoperative brain MRI scan showing a hematoma in the left temporo-parietal region and two enhancing nodular lesions in the right frontal and left temporal regions.
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Preoperative MRI axial cut T1-weighted contrast image shows ventroinferior displacement of cerebellum and brainstem
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Brain Computed Tomography showing no abnormality
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A contrast CT image of a deep frontal tumor with brain edema as a case of parenchymatous intracranial hypertension
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A magnetic resonance image with gadolinium enhancement at initial presentation. The image shows multiple ring-enhancing lesions spread diffusely throughout the brain.
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Brain MRI, Sagittal View Without Contrast EnhancementA large temporal lobe mass bridging the skull base into the left pterygomaxillary region.
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CT axial scan. An aberrant right subclavian artery aneurysm located behind the oesophagus. A parietal thrombus in the aneurism.
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Magnetic resonance image showing decrease in size of mass in right external auditory canal and middle ear cavity with no disease appreciable in high infratemporal fossa
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Brain computed tomography scan showing right thalamic hemorrhage with extension into the lateral ventricle, producing acute hydrocephalus, midline shift toward the left and transtentorial herniation
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TDM du cuir chevelu montrant un processus tumoral temporal droit fortement vascularisé sans extension locale
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MRI brain axial section flair image showing bilateral parietoccipital hyperintense signals
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Functional connectivity (FC) and fractional anisotropy (FA) differences indicated on a 3D view of the brain.Regions in yellow represent areas of decreased FC with the right accumbens area, regions in blue indicate areas of decreased FC with the right rostral ACC, and reduced white matter FA in LLD is shown in green.
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Computed tomography scan showing well-delineated soft tissue mass in infratemporal and buccal space
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Frontal radiograph of the skull demonstrates lytic changes of the temporal bones bilaterally (arrows).
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Axial T2W magnetic resonance image reveals fronto-temporal atrophy, dilated sylvian fissures with open opercula (straight arrow), diffuse white matter signal abnormality and bilateral high signal in the basal ganglia (curved arrow). Widening of the sylvian fissure gives the characteristic “bat-wing” appearance
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Placement of VOI in brain volume.
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Computed tomography (CT) chest shows multiple different size masses on parietal pleura as well as on visceral pleura
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Computed tomography of the brain. Regular diameter of the superior ophthalmic vein on the left (arrow) and regular signal of the fatty periorbital tissue
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Brain MRI with and without contrast. The arrow indicates an area of vague enhancement on the surface of the brainstem associated with the left-sided T2 signal abnormality.
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CT scan of the orbits and brain, coronal view. Soft tissue density collection on the floor of the right orbit, elevating the inferior rectus muscle, extending posteriorly to the apex of the orbit.
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Magentic resonance imaging (MRI) brain (sagittal section) showing empty sella turcica
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Computed tomography image of the temporal bone of a patient with HDR mimicking a congenital X-linked stapes gusher syndrome. Axial CT section of the temporal bones shows severe cochlear hypoplasia (black arrow), bulbous dilatation of the fundi of the IAC (white arrow) and a fistulous connection between the internal au... | |
On sagittal T2-weighted image, an absence of the primary fissure of the cerebellum is seen.
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Coronal T2-weighted brain MRI showing a sinonasal mass involving the ethmoid/sphenoid sinuses (white arrows) with extension into the right orbit (white arrow head) and anterior cranial fossa (black arrow).
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A 39-year-old women, 3 years after stroke, preceded by TIAs (Case 1). CT examination – hypodense area attributable to malacia after stroke in the right temporal and occipital lobe.
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Preoperative magnetic resonance imaging brain T1-weighted image axial showing deformity of frontal bone caused by large intradiploic arachnoid cyst with content signal is similar to cerebrospinal fluid
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A repeat MRI brain showing complete resolution of the signal abnormality in the left cerebellar hemisphere.
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Transverse ultrasonogram of the vertebral canal. Transverse ultrasonogram of the vertebral canal in a 5.7-year-old Swiss Braunvieh cow at the level of the atlanto-occipital space immediately after euthanasia. a Distance between skin and arachnoidea, b Dorsal compartment of the subarachnoid space, c Spinal cord, d Vent... | |
Whole body bone scan shows an abnormal, diffuse and a heterogeneous tracer uptake in the right half of the skull, having straight margins in the midline (left arrow) and in the skull base (up arrow) suggesting tracer localization in a large area of the brain
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Brain MRI: coronal T2‐weighted sequence showing absence of olfactory bulbs and tracts.
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Axial contrast enhanced MRI: extensive JA with a typical pattern of spread into the cancellous bone of the basisphenoid along the vidian canal (white dotted line); on the contralateral side, black arrows indicate the right vidian nerve. Moreover, the lesion spreads deeply into the pterygomaxillary fossa toward the mas... | |
50-year-old male with a glomus jugulotympanicum. Axial gadolinium-enhanced T1 MRI image with fat saturation demonstrating large enhancing tumor involving the temporal bone, middle ear, and peri-auricular region. The tumor is also seen extending into the left IAC.
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Right fronto-parietal subdural empyema
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MRI of the brain showing multiple bilateral infarcts (white arrows).
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High-resolution computed tomography of the temporal bone (coronal reconstruction) showing misplacement of a cochlear implant electrode in a hypotympanic air cell (filled arrow). The open arrow points to the basal turn of the cochlea.
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Six-week follow-up MRI brain (FLAIR) showing improvement in bilateral hyperintense lesions.
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Magnetic resonance imaging brain shows enlarged posterior fossa with cystic dilatation of fourth ventricle, elevated tentorium with cerebellar hypoplasia. This image is suggestive of a possibility of aqueductal stenosis
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Infarction in parietal cortex.
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Computed tomography of the brain of patient A
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CT image showing the lesion in the right temporal lobe (Original)
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MRI Brain (GRE T2WI) showing multiple hypointense lesions diagnosed as cerebral cavernomas.
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CT scan showing a right pleural effusion consistent with a haemothorax due to recent and active bleeding associated with a paravertebral hyperdense formation (7 cm in diameter) suspected to be a parietal neoplasm.
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MRI brain T2 image demonstrating a symmetric hyperintense lesion in the central pons.
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MRI - new left basal ganglia (lentiform nucleus and thalamus) rim enhancing lesion.
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Gadolinium-enhanced coronal T1-weighted MRI scan showing pachymeningeal enhancement over the left temporal cerebral convexity, the left cerebellar convexity, and the left side of tentorium cerebelli. Also, there is left mastoiditis.
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Preoperative MRI of the HeadAxial slice. T2-weighted image that demonstrates a solitary 2.9 cm left occipital lobe adenocarincoma, metastatic from a lung primary.
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T2 weighted image of brain showing hyperintense lesion in left parieto - occipital and right cerebellum
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Axial T2 W magnetic resonance brain showing hyperintensities in the dentate nucleus of cerebellum
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Computerized tomography (CT) of the brain showing bilateral subependymal periventricular tubers.
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CT brain revealing a large hypodense lesion in the left temporo-parietal region suggestive of encephalitis or infarction
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T2W axial image of patient 2, showing metastases in the occipital bone and iso-intense signal in the occluded sagittal sinus. Note the fluid around both optic nerves.
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Postoperative computed tomography brain plain demonstrating single burr hole over the right parietal area with complete evacuation of chronic subdural hematoma and resolution of mass effect and midline shift to left
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Figure 1. Neoplastic Meningitis in the brain. Arrows point to linear enhancement with small nodules in the vermis consistent with neoplastic meningitis. Circle surrounds previously treated parenchymal metastasis.
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Brain MRI, Sagittal View Without Contrast Enhancement
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Axial CECT showing extradural infiltrates extending bilaterally beneath the frontal and temporal bones. On both sides, small lobules were extending into the cortex of the frontal lobes and causing perifocal edema
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Enhanced magnetic resonance image (MRI) of the sagittal section of patient 1 showing the nodular lesions below the hypothalamus region. The posterior pituitary continued to lack the characteristic high signal.
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Course of the persistent primitive proatlantal intersegmental artery. Three-dimensional rotational angiogram of a right common carotid artery in lateral view in a patient with a persistent primitive hypoglossal artery (PHA). Added is a schematic drawing of the course of the persistent primitive proatlantal intersegmen... | |
Analyzed regions of retinal and choroidal thickness using the Early Treatment Diabetic Retinopathy Study map. Three concentric macular regions were defined, with radii of 0.5 mm (center 1 mm), 0.5 to 1.5 mm (inner ring), and 1.5 to 3.0 mm (outer ring). Inner and outer rings were divided into four quadrants: superior, ... | |
The MRI study of the brain revealed prominent bilateral extra-axial C.S.F. spaces with gliosis in both posterior parieto-occipital area with prominent left lateral ventricle and cerebellar folias.
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Surveillance CT head non-contrast was obtained during routine clinic follow-up at 1.5 months post-operation. Imaging shows residual encephalomalacia in the left fronto-temporal lobes, with no evidence or cyst recurrence or enlargement
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Magnetic resonance imaging 2 weeks later. Axial T2 FLAIR shows a thick rind of periventricular hyperintensity as well as focal right parietal and bilateral frontal lobe lesions.
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Brain computed tomography scan showing chronic subdural hematomas on both frontal lobes (*) 4 months after the trauma.
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Axial T2-weighted magnetic resonance imaging of the brain showing bilateral fronto-temporal atrophy with wide sylvian fissure giving the “bat-wings” appearance
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MRI FLAIR shows anterior temporal lobe involement
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T1 MRI sequence (axial) shows multiple coalescing thin walled cysts of varying sizes in both fonto-parietal areas.
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Axial fluid attenuated inversion recovery magnetic resonance imaging at a higher level showing cortical hyperintensities involving both fronto parietal cortex
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Brain CT showing biconvex high density in vertex
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CT scan brain showing a non-enhancing hypodense lesion in the left frontal cortex with sulci prominent in relation to the age.
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Photograph shows CT Scan of brain (plain) revealing bilateral basal ganglia calcification.
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Sagittal T2-weighted MR image of the cervical spine. An epidural mass with fluid level, consistent with an acute hemorrhage, is compressing the lower brain stem and upper cervical spinal cord at the level of the foramen magnum (white arrow). Additionally, hemorrhage is present at the level of the supracerebellar ciste... | |
Postoperative magnetic resonance imaging of the brain. Postoperative cranial magnetic resonance imaging revealed satisfactory result.
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MRI brain with gadolinium, axial view, showing well-defined lesion in left lateral part of fourth ventricle with brilliant enhancement
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MRA of brain
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Magnetic resonance imaging of brain (T1-weighted image; contrast-enhanced) showing single ring-enhancing lesion (yellow arrow) in the dorsal part of the midbrain with significant perifocal edema in adjacent part of brainstem, right cerebellar peduncle, adjacent thalamocortical tract, and periventricular region
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MRI brain, axial view
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T2-weighted brain magnetic resonance imaging of case 1. Microangiopathic changes in the periventricular area with early subacute bithalamic hemorrhage are noted.
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Brain MRI T1 sagittal sequence after Gadolinium injection showing homogeneous wall enhancement
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Brain MRI, Axial View with Contrast EnhancementPeripheral enhancement of the left temporal lobe operative bed and associated vasogenic edema consistent with residual or recurrent neoplastic change.
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Repeat head computed tomography showing significant resolution of infarct size along with hemorrhagic infarcts in the left parietooccipital region (arrow)
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Stronger activation to right-space valid trials compared with right-space invalid trials in the left and right middle superior temporal sulcus (STS) shown on a transverse slice. Left STS: MNI x = −60; y = −36; z = −2. Right STS: MNI x = 42; y = −40; z = 2. The colored bar shows the normalized value of activation (Z-sc... | |
T2 MRI of the brain after three weeks of inpatient toxoplasmosis treatment; nine weeks after initial presentation.
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