Cytology of carcinoma of the trachea.
D000368:Aged; D001980:Bronchi; D003528:Carcinoma, Adenoid Cystic / Q000473:pathology*; D002294:Carcinoma, Squamous Cell / Q000473:pathology*; D003581:Cytodiagnosis; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D008875:Middle Aged; D013183:Sputum / Q000166:cytology; D014134:Tracheal Neoplasms / Q000473:pathology*