Related Experiment Video
Updated: Aug 10, 2026

08:56
Fate Mapping of Human Embryonic Stem Cells by Teratoma Formation
Published on: August 1, 2010
Primary retroperitoneal teratoma in adults
Urology
|March 1, 1987
Summary
This study details a rare retroperitoneal teratoma containing only thyroid tissue. The computed tomography (CT) scan characteristics of this unique monodermal tumor are described.
Area of Science:
- Endocrinology
- Surgical Pathology
- Diagnostic Imaging
Background:
- Teratomas are germ cell tumors that can contain various tissue types.
- Primary retroperitoneal teratomas are rare, with monodermal variants being exceptionally uncommon.
- Teratomas composed solely of thyroid tissue (struma ovarii in the ovary) are known, but retroperitoneal locations are exceedingly rare.

