[Extragonadal endodermal sinus tumor--a report of 3 cases].
D000328:Adult; D006801:Humans; D007223:Infant; D008297:Male; D008479:Mediastinal Neoplasms / Q000473:pathology; D008649:Mesonephroma / Q000473:pathology*; D012445:Sacrococcygeal Region