title: Atypical mycobacterium infection mimicking lung cancer.
mesh_terms: D003937:Diagnosis, Differential; D006801:Humans; D008175:Lung Neoplasms / Q000175:diagnosis; D008297:Male; D008875:Middle Aged; D009164:Mycobacterium Infections / Q000175:diagnosis*; D009165:Mycobacterium Infections, Nontuberculous / Q000175:diagnosis*