Large solitary pulmonary mass (greater than 4 cm in diameter).
D002283:Carcinoma, Bronchogenic / Q000000981:diagnostic imaging; D003937:Diagnosis, Differential; D006801:Humans; D008171:Lung Diseases / Q000000981:diagnostic imaging*; D008175:Lung Neoplasms / Q000000981:diagnostic imaging; D011859:Radiography