RR - labs and diangostic findings Flashcards
Anticentromere antibodies
Scleroderma (CREST)
Antidesmoglein (epithelial) antibodies
Pemphigus vulgaris (blistering)
Anti-glomerular basement membrane antibodies
Goodpasture’s syndrome (glomerulonephritis with hemoptysis)
Antihistone antibodies
Drug-induced SLE (sulfa, hydralazine, isoniazid, phenytoin, procainamide)
Anti-IgG antibodies
Rheumatoid arthritis (systemic inflammation, joint pannus, boutonniere deformity)
Antimitochondrial antibodies (AMAs)
Primary biliary cirrhosis (female, cholestasis, portal HTN)
Antineutrophil cytoplasmic antibodies (ANCAs)
Vasculitis (c-ANCA for Wegener’s GPA), p-ANCA for microscopic polyangiitis, Churg-Strauss)
Antinuclear antibodies (ANAs)
SLE (type III hypersensitivity), including anti-Smith and anti-dsDNA)
Antiplatelet antibodies
Idiopathic thrombocytopenic purpura
Anti-topoisomerase antibodies
Diffuse systemic scleroderma
Anti-transglutaminase/anti-gliadin/anti-endomysial antibodies
Celiac disease (diarrhea, distension, 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 (AML, especially the promyelocytic [M3] type)
Bacitracin response
Sensitive: S. pyogenes (group A), reisistant: S. agalactiae (group B)
Bamboo spine on XR
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 XR
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)
Brown tumor of bone
Hyperparathyroidism or osteitis fibrosa cystica (deposited hemosiderin from hemorrhages gives brown color)
Cardiomegaly with apical atrophy
Chagas’ disease (Trypanosoma cruzi)
Cellular crescents in Bowman’s capsule
RPGN
Chocolate cyst of ovary
Endometriosis (frequently involves both ovaries)
Circular grouping of dark tumor cells surrounding pale neurofibrils
Homer-Wright rosettes (neuroblastoma, medulloblastoma, retinoblastoma)
Colonies of mucoid Pseudomonas in lungs
Cystic fibrosis (autosomal recessive mutation in CFTR resulting in fat soluble vitamin deficiency and mucous plugs)
Decreased a-fetoprotein in amniotic fluid/maternal serum
Down syndrome or other chromosomal abnormality
Degeneration of dorsal column nerves
Tabes dorsalis (3o syphilis), subacute combined degeneration (dorsal columns and lateral cortiospinal tracts affected)
Depigmentation of neurons in substantia nigra
Parkinson’s disease (basal ganglia disorder: rigidity, resting tremor, bradykinesia)
Desquamated epithelium casts in sputum
Curschmann’s spirals (bronchial asthma; can result in whorled mucous plugs)
Disarrayed granulosa cells in eosinophilic fluid
Call-Exner bodies (granulosa-theca 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’s eye” appearance of CMV
Enlarged thyroid cells with ground glass nuclei
Orphan Annie eyes nuclei (papillary thyroid carcinoma)
Eosinophilic cytoplasmic inclusion in liver cell
Mallory bodies (alcoholic liver disease)
Eosinophilic cytoplasmic inclusion in nerve cell
Lewy body (Parkinson’s disease)
Eosinophilic globule in liver
Councilman body (toxic or viral hepatitis, often yellow fever)
Eosinophilic inclusion bodies in cytoplasm of hippocampal nerve cells
Negri bodies of rabies (Lyssavirus)
Extracellular amyloid deposition in gray matter of brain
Senile plaques (Alzheimer’s)
Giant B cells with bilobed nuclei with prominent inclusions (Owl’s eye)
Reed-Sternberg cells (Hodgkin’s lymphoma)
Glomerulus like structure surrounding vessel in germ cells
Schiller-Duval bodies (yolk sac tumor)