Mixed Germ Cell Tumor : Polyembryoma
Section Editor: Dharam M. Ramnani, MD
Virginia Urology, Richmond, VA, USA
Image Description
Embryoid body in a polyembryoma pattern of mixed germ cell tumor. It is composed of a central portion of embryonal carcinoma between a ventral yolk sac tumor component and a dorsal amnion-like space. Alpha fetoprotein levels are often elevated due to the yolk sac component.