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BROWSE_BY_CLASS.md

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+# Browse by anomaly class
+
+Total scans: **10** — of which **4** carry an LSTV/TLTV anomaly (`lstv_class != normal`).
+
+Click any series_id to navigate to its scan directory; CT and mask files are at `scans/{series_id}/ct.nii.gz` and `mask.nii.gz`.  See `radiologist_review.csv` for the auditor's plain-English evidence strings per scan.
+
+---
+
+## t13_supernumerary  —  T13 supernumerary  (extra thoracic vertebra)  (3 scans)
+
+- [`verse547`](scans/verse547/)  —  25 labels
+- [`verse602`](scans/verse602/)  —  25 labels
+- [`verse631`](scans/verse631/)  —  25 labels
+
+## lumbarization  —  Lumbarization  (L6 present — sixth lumbar / S1 lumbarized)  (1 scans)
+
+- [`verse585`](scans/verse585/)  —  25 labels
+
+## normal  —  Normal lumbosacral / thoracolumbar anatomy  (6 scans)
+
+- [`verse108`](scans/verse108/)  —  24 labels
+- [`verse236`](scans/verse236/)  —  24 labels
+- [`verse644`](scans/verse644/)  —  24 labels
+- [`verse649`](scans/verse649/)  —  24 labels
+- [`verse758`](scans/verse758/)  —  24 labels
+- [`verse759`](scans/verse759/)  —  24 labels

radiologist_review.csv

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+series_id,lstv_class,lstv_class_audit,tltv_class_audit,lstv_evidence,tltv_evidence,n_labels,labels_present,has_T13,has_L6,lacks_T12_TLJ_in_FOV,veridah_applied,veridah_kind,veridah_action,source_dataset,source_format,sex,age,patient_id,split,ct_relative_path,mask_relative_path
+verse547,t13_supernumerary,lsj_fov_truncated,t13_supernumerary,L6 absent; cannot confirm sacralization because L4=True sacrum=False — lumbosacral junction not fully in FOV.,T13 (label 28) is present — supernumerary thoracic vertebra. Should articulate with ribs.,25,"[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 28]",True,False,False,False,,,verse20,miccai,F,24.0,verse547,validation,scans/verse547/ct.nii.gz,scans/verse547/mask.nii.gz
+verse602,t13_supernumerary,lsj_fov_truncated,t13_supernumerary,L6 absent; cannot confirm sacralization because L4=True sacrum=False — lumbosacral junction not fully in FOV.,T13 (label 28) is present — supernumerary thoracic vertebra. Should articulate with ribs.,25,"[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 28]",True,False,False,False,,,verse20,miccai,M,65.0,verse602,test,scans/verse602/ct.nii.gz,scans/verse602/mask.nii.gz
+verse631,t13_supernumerary,lsj_fov_truncated,t13_supernumerary,L6 absent; cannot confirm sacralization because L4=True sacrum=False — lumbosacral junction not fully in FOV.,T13 (label 28) is present — supernumerary thoracic vertebra. Should articulate with ribs.,25,"[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 28]",True,False,False,False,,,verse20,miccai,M,64.0,verse631,training,scans/verse631/ct.nii.gz,scans/verse631/mask.nii.gz
+verse585,lumbarization,lumbarization,normal_thoracolumbar,"L6 (label 25) is present — extra lumbar segment, likely unfused S1.  Castellvi grading required to confirm phenotype.","T11, T12, L1 present, no T13",25,"[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25]",False,True,False,False,,,verse20,miccai,M,35.0,verse585,validation,scans/verse585/ct.nii.gz,scans/verse585/mask.nii.gz
+verse108,normal,lsj_fov_truncated,normal_thoracolumbar,L6 absent; cannot confirm sacralization because L4=True sacrum=False — lumbosacral junction not fully in FOV.,"T11, T12, L1 present, no T13",24,"[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24]",False,False,False,False,,,verse20,miccai,F,52.0,verse108,test,scans/verse108/ct.nii.gz,scans/verse108/mask.nii.gz
+verse236,normal,lsj_fov_truncated,normal_thoracolumbar,L6 absent; cannot confirm sacralization because L4=True sacrum=False — lumbosacral junction not fully in FOV.,"T11, T12, L1 present, no T13",24,"[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24]",False,False,False,False,,,verse20,miccai,M,88.0,verse236,test,scans/verse236/ct.nii.gz,scans/verse236/mask.nii.gz
+verse644,normal,lsj_fov_truncated,normal_thoracolumbar,L6 absent; cannot confirm sacralization because L4=True sacrum=False — lumbosacral junction not fully in FOV.,"T11, T12, L1 present, no T13",24,"[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24]",False,False,False,False,,,verse20,miccai,F,29.0,verse644,validation,scans/verse644/ct.nii.gz,scans/verse644/mask.nii.gz
+verse649,normal,lsj_fov_truncated,normal_thoracolumbar,L6 absent; cannot confirm sacralization because L4=True sacrum=False — lumbosacral junction not fully in FOV.,"T11, T12, L1 present, no T13",24,"[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24]",False,False,False,False,,,verse20,miccai,M,48.0,verse649,test,scans/verse649/ct.nii.gz,scans/verse649/mask.nii.gz
+verse758,normal,lsj_fov_truncated,normal_thoracolumbar,L6 absent; cannot confirm sacralization because L4=True sacrum=False — lumbosacral junction not fully in FOV.,"T11, T12, L1 present, no T13",24,"[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24]",False,False,False,False,,,verse20,miccai,F,37.0,verse758,test,scans/verse758/ct.nii.gz,scans/verse758/mask.nii.gz
+verse759,normal,lsj_fov_truncated,normal_thoracolumbar,L6 absent; cannot confirm sacralization because L4=True sacrum=False — lumbosacral junction not fully in FOV.,"T11, T12, L1 present, no T13",24,"[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24]",False,False,False,False,,,verse20,miccai,M,83.0,verse759,validation,scans/verse759/ct.nii.gz,scans/verse759/mask.nii.gz