title: Case records of the Massachusetts General Hospital. Weekly clinicopathological exercises. Case 18-1982. A 47-year-old man with fever and a mediastinal mass.
mesh_terms: D018288:Carcinoma, Small Cell / Q000175:diagnosis / Q000473:pathology*; D003937:Diagnosis, Differential; D006801:Humans; D006965:Hyperplasia; D008175:Lung Neoplasms / Q000175:diagnosis / Q000473:pathology*; D008198:Lymph Nodes / Q000473:pathology; D008223:Lymphoma / Q000175:diagnosis; D008297:Male; D008479:Mediastinal Neoplasms / Q000175:diagnosis / Q000473:pathology*; D008875:Middle Aged