[Case report of chorioepithelioma in a male and the clinical statistics of the cases in Japan].
D000328:Adult; D000367:Age Factors; D001344:Autopsy; D002822:Choriocarcinoma / Q000175:diagnosis / Q000453:epidemiology* / Q000473:pathology*; D006177:Gynecomastia / Q000175:diagnosis; D006801:Humans; D007564:Japan; D008297:Male; D009362:Neoplasm Metastasis; D012186:Retroperitoneal Neoplasms / Q000473:pathology*; D013736:Testicular Neoplasms / Q000175:diagnosis / Q000453:epidemiology* / Q000473:pathology*