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WVSOM FA -- 10

WVSOM -- First Aid Classic Labs/Findings Page 4

QuestionAnswer
Renal epithelial casts in urine acute toxic/viral nephrosis
Rhomboid crystals, positively bifringent pseudogout (calcium pyrophosphate dehydrate)
Rib notching coarctation of the aorta
Sheets of medium-sized lymphoid cells (“starry sky” appearance on histology) Burkitt’s lymphoma (t[8
Silver-staining spherical aggregation of tau proteins in neurons Pick bodies (Pick’s disease: progressive dementia, similar to alzheimers)
Small granulomatous lesion in lungs (can calcify) Ghon focus (Primary TB: mycobacterium bacilli)
Small, round RBC inclusions Heinz bodies (G6PD deficiency, α-thalassemia, chronic liver disease)
“soap bubble” on x-ray Giant cell tumor of bone (generally benign)
“Spikes” on basement membrane, “dome-like” endothelial deposits Membranous glomerulonephritis (may progress to nephritic syndrome)
Stacks of red blood cells Rouleaux formation (high ESR: multiple myloma)
Stippled vaginal epithelial cells “clue cells” (gardnerella vaginalis)
“tennis-racket”-shaped cytoplasmic organelles (EM) in langerhans cells Birbeck granules (histiocytosis X: eosinophilic granuloma)
Thrombi made of white/red layers Lines of Zahn (arterial thrombus, layers of platelets/RBCs)
“thumb sign” on lateral x-ray Epiglottitis (H. influenzae)
Thyroid-like appearance of kidney chronic bacterial pyelonephritis
“Tram-track” appearance on LM membranoproliferative glomerulonephritis
Triglyceride accumulation in liver cell vacuoles fatty liver disease (alcoholic or metabolic syndrome)
WBCs that look “smudged” CLL (almost always B cell
“Wire loop” glomerular appearance on LM Lupus nephropathy
Yellow CSF xanthochromia (subarachnoid hemorrhage)
Created by: tjamrose
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