title: Gynecomastia in a young man.
mesh_terms: D000328:Adult; D002822:Choriocarcinoma / Q000150:complications / Q000175:diagnosis; D003937:Diagnosis, Differential; D004407:Dysgerminoma / Q000150:complications* / Q000175:diagnosis; D006177:Gynecomastia / Q000150:complications / Q000000981:diagnostic imaging / Q000209:etiology*; D006801:Humans; D008175:Lung Neoplasms / Q000556:secondary; D008297:Male; D011859:Radiography; D012186:Retroperitoneal Neoplasms / Q000556:secondary; D013724:Teratoma / Q000150:complications / Q000175:diagnosis; D013736:Testicular Neoplasms / Q000150:complications* / Q000175:diagnosis