Classic Labs/Findings Flashcards
anticentromere antibodies
Scleroderma
CREST
antidesmoglein (epithelial) antibodies
Pemphigus vulgaris
blistering
anti-glomerular basement membrane antibodies
Goodpasture syndrome
glomerulonephritis & hemoptysis
antihistone antibodies
Drug-induced SLE
hydralazine, INH, phenytoin, procainamide
anti-IgG antibodies
Rheumatoid arthritis (systemic inflamm, joint pannus, boutonneière deformity)
antimitochondrial antibodies (AMA)
Primary biliary cirrhosis
female, cholestasis, portal HTN
antineutrophil cytoplasmic antibodies (ANCA)
Microscopic polyangiitis & Churg-Strauss syndrome (MPO-ANCA/p-ANCA);
Granulomatosis w/ polyangiitis (Wegener; PR3-ANCA/c-ANCA)
antinuclear antibodies (ANA: anti-Smith/snRNPs & anti-dsDNA)
SLE
type III HSR
antiplatelet antibodies
Idiopathic thrombocytopenia purpura
ITP
anti-topoisomerase antibodies
Diffuse systemic scleroderma
anti-transglutaminase/anti-gliadin/anti-endomysial antibodies
Celiac disease
diarrhea, distension, wt loss
‘apple core’ lesion on abdominal x-ray
Colorectal cancer
usually left-sided
azurophilic peroxidase + granular inclusions in granulocytes & myeloblasts
Auer rods (AML, esp PML M3 type)
bacitracin response
Resistance: S. agalactiae (group B)
Sensitive: S. pyogenes (group A)
B-BRAS
‘bamboo spine’ on x-ray
Ankylosing spondylitis
chronic inflammatory arthritis: HLA-B27
basophilic nuclear remnants in RBCs
Howell-Jolly bodies
d/t splenectomy or nonfunctional spleen
basophilic stippling of RBCs
Lead poisoning,
Sideroblastic anemia
bloody tap on LP
subarachnoid hemorrhage
‘boot-shaped’ heart on x-ray
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 –> Horner syndrome
‘brown’ tumor of bone
Hyperparathyroidism OR Osteitis fibrosa cystica
deposited hemosiderin from hemorrhage –> brown color
cardiomegaly w/ apical atrophy
Chagas disease
Trypansoma cruzi
cellular crescents in Bowman capsule
Rapidly progressive crescentic glomerulonephritis
RPGN
‘chocolate cyst’ of ovary
Endometriosis
frequently involves both ovaries
circular grouping of dark tumor cells surrounding pale neurofibrils
Homer-Wright rosettes
neuroblastoma, retinoblastoma, medulloblastoma
colonies of mucoid Pseudomonas in lungs
Cystic fibrosis (AR mutation in CFTR gene --> fat-soluble vit def & mucous plugs)
decreased AFP in amniotic fluid/maternal serum
Down syndrome & other chromosomal abnormalities
degeneration of dorsal column nerves
Tabes dorsalis (3' syphilis), Subacute combined degeneration (B12 def --> dorsal columns & lateral corticospinal tracts affected)
depigmentation of neurons in substantia nigra
Parkinson disease
basal ganglia d/o: rigidity, resting tremor, bradykinesia
desquamated epithelium casts in sputum
Curschmann spirals
bronchial asthma; can result in whorled mucous plugs
disarrayed granulosa cells in eosinophilic fluid
Call-Exner bodies
granulosa-theca cell tumor of the ovary
dysplastic squamous cervical cells with nuclear enlargement and hyperchromasia
Koilocytes
HPV: predisposes to cervical cancer
enlarged cells with intranuclear inclusion bodies
‘Owl eye’ appearance of CMV
enlarged thyroid cells with ground-glass nuclei
‘Orphan Annie’ eyes nuclei
Papillary carcinoma of the thyroid
eosinophilic cytoplasmic inclusion in liver cell
Mallory body
alcoholic liver disease
eosinophilic cytoplasmic inclusion in nerve cell
Lewy body
Parkinson disease
eosinophilic globule in liver
Councilman body
toxic or viral hepatitis, often yellow fever
eosinophilic inclusion bodies in cytoplasm of hippocampal and cerebellar nerve cells
Negri bodies of rabies
extracellular amyloid deposition in brain gray matter
Senile plaques
Alzheimer disease
giant B cells with bilobed nuclei with prominent inclusions
Reed-Sternberg cells CD15/CD30+
Hodgkin lymphoma
glomerulus-like structure surrounding vessel in germ cells
Schiller-Duval bodies
Yolk sac tumor