Classic labs/findings Flashcards
dec AFP in amniotic fluid
Down syndrome or other chromosomal abnormalities (high hCG + inhibin)
large granules in phagocytes, immunodeficiency
chediak-higashi (congenital failure of phagolysosome formation)
recurrent infections, eczema, thrombocytopenia
wiskott-aldrich syndrome
branching G+ rods w/ sulfur granules
actinomyces israelii
optochin response
resistant: viridans strep
sensitive: strep pneumo
OVRPS
novobiocin response
resistant: staph saprophyticus
sensitive: staph epidermidis
bacitracin response
resistant: s. agalactiae (GBS)
sensitive: s. pyo (GAS)
BBRAS
strep bovis bacteremia
colon cancer
hilar lymphadenopathy, peripheral granulomatous lesion in middle or lower lungs
ghon complex (primary TB)
bacteria-covered vaginal epithelial cells
clue cells (gardnerella)
ring-enhancing brain lesion on CT/MRI in AIDS
toxo, CNS lymphoma
cardiomegaly w/ apical atrophy
chagas disease
heterophile Abs
infectious mono (EBV)
intranuclear eosinophilic droplet-like bodies
Cowdry type A bodies (HSV or VZV)
eosinophilic globule in liver
councilman body (viral hep, yellow fever) - hepatocyte undergoing apoptosis
steeple sign on frontal CXR
croup (parainfluenza virus)
eosinophilic inclusion bodies in cytoplasm of hippocampal and cerebellar neurons
negri bodies of rabies
atypical lymphocytes
EBV
enlarged cells w/ intranuclear inclusion bodies
Owl-eye appearance of CMV
thumb sign on lateral neck x-ray
epiglottitis (H flu)
delta wave on ECG, short PR interval, supraventricular tachycardia
WPW (bundle of kent bypasses AV node)
boot-shaped heart on Xray
ToF (due to RV hypertrophy)
rib notching (inferior surface, on x-ray)
coarctation of the aorta
heart nodules (granulomatous)
aschoff bodies (rheumatic fever)
electrical alternans
pericardial tamponade
HTN, hypokalemia, metabolic alkalosis
primary hyperaldo (Conn syndrome)
enlarged thyroid cells w/ ground-glass nuclei w/ central clearing
“orphan annie” eyes (papillary carcinoma of the thyroid)
MPO/p-ANCA
microscopic polyangiitis, EGPA (PSC)
PR3/c-ANCA
GPA
anti-TTG/gliadin/endomysial Abs
celiac
mucin-filled cell w/ peripheral nucleus
“signet ring” (gastric carcinoma)
narrowing of bowel lumen on barium x-ray
string sign - Crohns
lead pipe appearance of colon on abd imaging
UC
thousands of polyps on colonoscopy
FAP (APC mutation)
apple-core lesion on barium enema xray
colorectal cancer (L sided)
eosinophilic cytoplasmic inclusion on liver cell
mallory body (alcoholic liver dz)
TG accumulation in liver cell vacuoles
fatty liver dz
“nutmeg” liver
chronic passive congestion of liver due to RHF or budd chiari
anti-mitochondrial Abs
PBC (female, cholestasis, portal HTN)
low serum ceruloplasmin
wilson dz
migratory thrombophlebitis
troussea syndrome (pancreatic adenocarcinoma or lung)