title: Pleural plasmacytoma presenting as pleural effusion.
mesh_terms: D000368:Aged; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D009101:Multiple Myeloma / Q000175:diagnosis*; D010996:Pleural Effusion / Q000000981:diagnostic imaging / Q000209:etiology*; D010997:Pleural Neoplasms / Q000150:complications / Q000175:diagnosis*; D011859:Radiography