title: Positive sputum cytology in hairy cell leukemia.
mesh_terms: D000368:Aged; D002467:Cell Nucleus / Q000473:pathology; D003593:Cytoplasm / Q000473:pathology; D006801:Humans; D007943:Leukemia, Hairy Cell / Q000473:pathology*; D008297:Male; D013183:Sputum / Q000166:cytology*