Germ cell tumors
Reviewer: Shahrzad Ehdaivand, M.D. (see Reviewers page)
Revised: 26 June 2014, last major update December 2012
Copyright: (c) 2002-2014, PathologyOutlines.com, Inc.
- 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)
Several embryoid bodies
in different stages of development
End of Ovary tumor > Germ cell tumors > Polyembryoma
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