sft Lung Cytology Flashcards
(36 cards)
Saccomanno Method
for sputum cytology; 50% ethanol, 2% carbowax, spun at slow rate to homogenize specimen, then smeared
BAL adequacy criterion
at least 1 pulmonary macrophage
What is this; what is it associated with?
Creola body (benign cells with cilia on edge); Asthma
Differential, more specific finding, etiology?
Pulmonary alveolar proteinosis (must rule out necrosis and Pneumocystis); in Pap stain, dense globules are more specific than granular debris; usually autoimmune.
Diagnosis? Buzz words? Risk factors?
PJP, alveolar casts of fluffy debris, crushed ping pong balls on GMS
Fungus type? Clues?
Uniform thickness, septations, acute angle branching
Fungus type? Clues?
Cryptococcus, plemorphic yeast forms, thick capsule highlighted by mucicarmine
Fungus type? Clues?
Zygomyces/Mucor; variable hyphal thickness, no septations, right angle branching
Organism?
Coccidioides; large spherule with endospores
Strongyloides stercoralis
Paragonimus westermani, thick shell with shouldered operculum
Name of CMV inclusion?
Cowdry type A body
Necrotizing granuloma (left) with giant cells (right), as in Mycobacterium tuberculosis infection.
Necrotic debris with filamentous Nocardia organisms
How do non-tuberculoid mycobacterial infections present?
MAC, usually present as aggregates of histiocytes filled with organisms
Differential? Name of the thing with the arrow.
Non-necrotizing granuloma, like in sarcoid. Arrow points to an asteroid body with a giant cell (common in sarcoid but not specific)
Asbestos/ferruginous bodies (stain + for iron)
Plant matter on left (refractile cell wall); skeletal muscle on right (aspirated meat)
Specific name of finding? Association?
Curschmann spiral; inpissated mucus seen in asthma patients
Finding?
Collagen balls, commonly seen in pleural effusions; Thin rim of streaming nuclei around periphery
Finding? Cause?
Cornflaking, caused by air trapping during coverslipping
Pollen, round, refractile borders, no internal structure
Alternaria . Air-borne contaminant fungi that have short yellow-brown conidiospores with transversely and longitudinally septate macroconidia (snow shoe-like/hand-grenade)
Starch granules
