Expectoration of bronchogenic tumour component.
D002283:Carcinoma, Bronchogenic / Q000473:pathology*; D003371:Cough / Q000150:complications; D006801:Humans; D008175:Lung Neoplasms / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D013183:Sputum / Q000166:cytology*