title: Benign pulmonary nodule and small-cell cancer.
mesh_terms: D018288:Carcinoma, Small Cell / Q000175:diagnosis*; D003937:Diagnosis, Differential; D004184:Dirofilariasis / Q000175:diagnosis*; D006801:Humans; D008174:Lung Diseases, Parasitic / Q000175:diagnosis*; D008175:Lung Neoplasms / Q000175:diagnosis*; D008297:Male; D008875:Middle Aged