Labs/Findings Flashcards
Idiopathic pulmonary fibrosis
Honeycomb lung on XR or CT
FAP (AD, mutation of APC)
Thousands of polyps on colonoscopy
Need colectomy
100% chance progression to colon cancer
Birbeck granules (Langerhans cell histiocytosis)
Tennis racket shaped cytoplasmic organelles (EM) in Langerhans cells
Hypersegmented neutrophils
Megaloblastic anemia (B12 deficiency: neurological symptoms; folate deficiency: no neuro symptoms)
Lines of Zahn (arterial thrombus, layers of platelets/RBCs)
Thrombi with red and white layers
Howell Jolly bodies (dt splenectomy or nonfunctional spleen)
Basophilic nuclear remnants in RBCs
Anti IgG antibodies
RA (systemic inflammation, joint pannus, boutonnière and swan neck deformity)
Multiple myeloma
Lytic (punched out) bone lesions on X-RAY
Codman’s triangle (raised periosteum)
Aggressive bone lesion (ie osteosarcoma, Ewing sarcoma, osteomyelitis)
Warfarin monitoring lab
Prothrombin time
Warfarin inhibits activation of 2,7, 9, 10
Warfarin inhibits vitamin K epoxide reductase
Trousseau sign (adenocarcinoma of pancreas or lung)
Migratory thrombophlebitis (leading to migrating DVTs and vasculitis)
Glomerulonephritis
RBC casts in urine
Low ceruloplasmin
Wilson disease (hepatolenticular degeneration; Kayser Fleischer rings dt copper accumulation)
Parkinson disease (basal ganglia disorder: rigidity, resting tremor, bradykinesia)
Depigmentation of neurons in substantia nigra
Kimmelstiel Wilson nodules (diabetic nephropathy)
Nodular hyaline deposits in glomeruli
High D dimer
DVT
PE
DIC
Fibrocystic change of breast
Mammary gland (blue domed) cyst
Elevated hCG
Choriocarcinoma
Hydatidiform mole (with abs without embryo)
Multiple pregnancies
Negri bodies of rabies
Eosinophilic inclusion bodies in cytoplasm of hippocampal and cerebellar neurons
Chocolate cyst of ovary
Endometriosis
Auer rods (AML, especially promyelocytic M3 subtype)
Azurophilic peroxidase + granular inclusions in granulocytes and myeloblasts
Koilocytes (HPV predisposes to cervical cancer)
Dysplasia squamous cervical cells with raisinoid nuclei and hyperchromasia
3 causes of hypochromic, microcytic anemia
Iron deficiency anemia
Lead poisoning
Thalassemia (fetal Hb sometimes present)
Lewy body (Parkinson disease and Lewy body dementia)
Eosinophilic cytoplasmic inclusion in neuron
Antineutrophil cytoplasmic antibodies (ANCAs)
Microscopic polyangiitis and eosinophilic granulomatosis (MPO-ANCA/p ANCA)
Granulomatosis with polyangiitis (Wheeler; PR3 ANCA/c ANCA)
Primary sclerosing cholangitis (MPO- ANCA/p ANCA)
Rapidly progressive (crescentic) glomerulonephritis
Cellular crescents in Bowmans capsule
Tetralogy of Fallot (dt RVH)
Boot shaped heart in CXR
Aschoff bodies (rheumatic fever)
Heart nodules (granulomatous)
Chronic end stage renal disease
Waxy casts with low urine flow
Glioblastoma multiforme
Pseudopalisading tumor cells in brain bx
Mallory body (alcoholic liver disease)
Eosinophilic cytoplasmic inclusion in liver cell
Colonies of mucoid Pseudomonas in lungs
Cystic fibrosis (AR mutation in CFTR gene—> fat soluble vitamin deficiency and mucus plugs)
Cardiac tamponade
Electrical alternans (alternating amplitude on EKG)
Owl eye appearance of CMV
Enlarged cells with intranuclear inclusion bodies
Psammoma bodies
Meningiomas
Papillary thyroid carcinoma
Mesothelioma
Papillary serous carcinoma of endometrium/ovary
Chediak Higashi disease (congenital failure of phagolysosome formation)
Large granules in phagocytes
Immunodeficiency
Nutmeg liver
Chronic passive congestion of liver dt RHF or Budd Chiari syndrome
Epiglottitis (H influenzae)
Thumb sign on lateral X-ray
Croup (parainfluenza virus)
Steeple sign on CXR
Thyroid like appearance of kidney
Chronic pyelonephritis (usually dt recurrent infections)