A case of ovarian yolk sac tumor associated with endometrioid adenocarcinoma

open access

Introduction

Ovarian yolk sac tumor (YST) is characterized by endodermal differentiation, and represents approximately 20% of malignant germ cell neoplasms. The age distribution of patients reported with YST ranges from 16 months to 46 years, but most patients are under 30 years of age (Talerman and Vang, 2011). YST is often found admixed with other types of germ cell neoplasm, but YST associated with epithelial ovarian carcinoma is extremely rare......