Squamous carcinoma of the lung.
D001706:Biopsy; D002294:Carcinoma, Squamous Cell / Q000175:diagnosis*; D003937:Diagnosis, Differential; D006801:Humans; D008175:Lung Neoplasms / Q000175:diagnosis*; D008297:Male; D008875:Middle Aged; D010997:Pleural Neoplasms / Q000473:pathology