FA Rapid Review: Classic Labs/Finding Flashcards
Anticentromere antibodies
Scleroderma (CREST) Pemphigus vulgaris (blistering)
Antidesmoglein (epithelial) antibodies
Pemphigus vulgaris (blistering)
Anti-glomerular basement membrane antibodies
Goodpasture’s syndrome (glomerulonephritis and hemoptysis)
Antihistone antibodies
Drug-induced SLE (hydralazine, isoniazid, phenytoin, procainamide)
Antimitochondrial antibodies (AMAs)
1° biliary cirrhosis (female, cholestasis, portal hypertension)
Antineutrophil cytoplasmic antibodies (ANCAs)
Vasculitis (c-ANCA: granulomatosis with polyangiitis [Wegener’s]; p-ANCA: microscopic polyangiitis, Churg Strauss syndrome)
Antinuclear antibodies (ANAs: anti-Smith and anti-dsDNA)
SLE (type III hypersensitivity)
Antiplatelet antibodies
Idiopathic thrombocytopenic purpura
Anti-topoisomerase antibodies
Diffuse systemic scleroderma
Anti-transglutaminase I, anti-gliadin I, anti-endomysial antibodies
Celiac disease (diarrhea, distention, weight loss)
Apple core lesion on abdominal x-ray
Colorectal cancer (usually left-sided)
Azurophilic peroxidase-positive granular inclusions in granulocytes and myeloblasts
Auer rods (acute myelogenous leukemia, especially the promyelocytic (M3 type)
Bacitracin response
Sensitive: Streptococcus pyogenes (group A); resistant: Streptococcus agalactiae (group B)
Basophilic nuclear remnants in RBCs
Howell-Jolly bodies (clue to splenectomy or nonfunctional spleen)
Basophilic stippling of RBCs (2)
Lead poisoning or sideroblastic anemia
Bloody tap on LP
Subarachnoid hemorrhage
Boot shaped heart on x-ray (2)
Tetralogy of Fallot, RVH
Branching gram-positive rods with sulfur granules
Actinomyces israelii
Bronchogenic apical lung tumor on imaging
Pancoast tumor (can compress sympathetic ganglion and cause Horner’s syndrome)
Brown tumor of bone (2)
Hyperparathyroidism or osteitis fibrosa cystica (deposited hemosiderin from hemorrhage gives brown color)
Cardiomegaly with apical atrophy
Chagas’ disease (Trypanosoma cruzi)
Cellular crescents in Bowman’s capsule
Rapidly progressive crescentic glomerulonephritis
Chocolate cyst of ovary
Endometriosis (frequently involves both ovaries)
Circular grouping of dark tumor cells surrounding pale neurofibrils
Homer-Wright rosettes (neuroblastoma, medulloblastoma, retinoblastoma)