A case report of Extragonadal endodermal sinus tumor occurring in the appendix and mesentery.

Ko, Young Bok; Noh, Heung Tae; Lee, Min A; Shin, Kwan Seop; Hwang, Soon Ho; Hyun, Suk Hwan; Son, Sung Kyong

Case Report

Korean Journal of Obstetrics & Gynecology 2006;49(5):1138-1142.
Published online May 1, 2006.

A case report of Extragonadal endodermal sinus tumor occurring in the appendix and mesentery.

Young Bok Ko, Heung Tae Noh, Min A Lee, Kwan Seop Shin, Soon Ho Hwang, Suk Hwan Hyun, Sung Kyong Son

Department of Obstetrics and Gynecology, College of Medicine, Chungnam National University, Daejon Korea. ssk2887@yahoo.co.kr

Abstract

Endodermal sinus tumor (EST) is a rare malignant germ cell tumor arising usually in the gonads such as the testis or ovary. However, 10-15% of EST cases may arise in the extragonadal sites, such as sacrocoxygeal area, mediastinum, vagina, brain and retroperitoneum in a frequent occurring order. To our knowledge there are only 2 case reports of extragonadal EST, one originating from the omentum in 1998, and another which was localized in the pelvis in 2003. We report one case of extragonadal sinus tumor which arose in appendix and mesentery in the 19-year-old female with a review of the literature.

Key Words: Endodermal sinus tumor, Appendix, Mesentery