Yolk sac tumor of the pineal region.
D001932:Brain Neoplasms / Q000175:diagnosis / Q000473:pathology / Q000601:surgery*; D002648:Child; D006801:Humans; D008297:Male; D008649:Mesonephroma / Q000175:diagnosis / Q000473:pathology / Q000601:surgery*; D010870:Pineal Gland / Q000473:pathology / Q000601:surgery*