J Korean Soc Radiol.
2012 Sep;67(3):205-208. 10.3348/jksr.2012.67.3.205.
Sacrococcygeal Fetus-in-Fetu Mimicking a Teratoma: A Rare Case with Brain Tissue and an Immature Teratoma Component
- Affiliations
-
- 1Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea. chyoon@amc.seoul.kr
- 2Department of Neonatology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
- 3Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
- KMID: 2097972
- DOI: http://doi.org/10.3348/jksr.2012.67.3.205
Abstract
- Fetus in fetu is a rare, nonviable, malformed parasitic twin, which grows within the body of its partner. It has been known as being almost always anencephalic and rarely reported to have an immature teratoma component. We report a case of a sacrococcygeal fetus-in-fetu with brain tissue seen on both imaging studies and pathologic specimens, containing an immature teratoma component on pathologic examinations. Imaging studies including plain radiography were very helpful for the correct diagnosis.
