Ovary
Germ cell tumors
Polyembryoma


Topic Completed: 1 December 2012

Minor changes: 21 October 2020

Copyright: 2002-2020, PathologyOutlines.com, Inc.

PubMed Search: Polyembryoma ovarian

Page views in 2019: 890
Page views in 2020 to date: 710
Cite this page: Ehdaivand S. Polyembryoma. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/ovarytumorpolyembryoma.html. Accessed October 24th, 2020.
Definition / general
  • Embryonal carcinoma composed primarily of embryoid bodies
  • Embryoid body has amniotic cavity-like structure and is continuous with intestinal duct, and rarely has squamous cell nests, while "yolk sac" is continuous with hepatic tissue
  • Embryoid body is not considered to be a real or teratomatous embryo, but a product of divergent differentiation into intestine and liver from the plastic epithelium, which seems to be derived from embryonic gut (Hum Pathol 1988;19:1144)
Microscopic (histologic) images

AFIP images

Several embryoid
bodies in
different stages
of development

Back to top
Image 01 Image 02