title: Familial extragonadal germ cell tumors.
mesh_terms: D000328:Adult; D001932:Brain Neoplasms / Q000235:genetics*; D002552:Cerebral Ventricles; D004407:Dysgerminoma / Q000235:genetics*; D006801:Humans; D008297:Male; D008479:Mediastinal Neoplasms / Q000235:genetics; D013724:Teratoma / Q000235:genetics