Labs/Findings Flashcards
Anticentromere
Scleroderma (CREST)
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)
Anti-IgG antibodies
Rheumatoid arthritis (systemic inflammation, joint pannus, boutonniere deformity)
Anti-mitochondrial antibodies (AMAs)
Primary biliary cirrhosis (female, cholestasis, portal hypertension)
Anti-neutrophil cytoplasmic antibodies (ANCAs)
Vasculitis (c-ANCA: Wegener’s; p-ANCA: microscopic polyangiitis, Churg- Strauss syndrome)
Anti-nuclear antibodies (ANAs: anti-Smith and anti-dsDNA)
SLE (type III hypersensitivity)
Anti-platelet antibodies
Idiopathetic thrombocytopenic purpura (ITP)
Anti-topoisomerase antibodies
Diffuse systemic scleroderma
Anti-transglutaminase/anti-gliadin/anti-endomysial antibodies
Celiac disease (diarrhea, distention, weight loss)
“Apple core” lesion on abdominal x-ray
Colorectal cancer (usually left-sided)
Azurophilic granular needles in leukemic blasts
Auer rods (acute myelogenous leukemia, especially the promyelocytic [M3] type)
Bacitracin response
Sensitive: Streptococcus pyogenes (group A); resistant: Streptococcus agalactiae (group B)
“Bamboo spine” on xray
Ankylosing spondylitis (chronic inflammatory arthritis: HLA-B27)
Basophilic nuclear remnants in RBCs
Howell-Jolly bodies (due to splenectomy or nonfunctional spleen)
Basophilic stippling of RBCs
Lead poisoning or sideroblastic anemia
Bloody tap on LP
Subarachnoid hemorrhage
“Boot-shaped” heart on xray
Tetralogy of Fallot, RVH
Branching gram-positive rods with sulfar granules
Actinomyces israelii
Bronchogenic apical lung tumor
Pancoast tumor (can compress sympathetic ganglion and cause Horner’s syndrome)
“Brown” tumor of bone
Hemorrhage (hemosiderin) causes brown colour of osteolytic cysts. Due to: hyperparathyroidism, osteitis fibrosa cystica
Cardiomegaly with apical atrophy
Chaga’s disease (Trypanosoma cruzi)
Cellular crescents in Bowman’s capsule
Rapidly progressive crescentric glomerulonephritis