A Case of Primary Pineal Endodermal Sinus Tumor

ABSTRACT

A case of endodermal sinus tumor in the pineal region of a 12-year-old boy is presented. Preponderance of this tumor occurs in the boys, usually in their second decade. The tumor is characterized by perivascular structure(Schiller-Duval body) which simulate endodermal diverticula of yolk sac origin. His serum alpha-fetoprotein levels was abnormally high(over 400ng/ml) He was treated with operation and irradiation of 4500rad to the whole brain and spinal axis. But he died 6 month later after operation. The authors report a case of endodermal sinus tumor arising from pineal gland and briefly review literature.