Difference between revisions of "Exaggerated placental site"
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*[[PSTT]]. | *[[PSTT]]. | ||
===Image=== | |||
*[http://www.webpathology.com/image.asp?case=565&n=7 EPS (webpathology.com)]. | |||
==IHC== | ==IHC== | ||
Revision as of 15:46, 22 May 2014
Exaggerated placental site, abbreviated EPS, is an uncommon benign pathology that is a gestational trophoblastic disease.
It was previously known as syncytial endometritis.[1]
General
- Benign.
Definition:
- "Increased number" of implantation-site intermediate trophoblastic cells.
Note:
- Used to go by a terrible old term: syncytial endometritis:[2]
- Not syncytial -- mostly.
- Not inflammatory.
Microscopic
Features:[2]
- Intermediate trophoblast:
- Abundant (eosinophilic) cytoplasm.
- Usu. adjacent to:
- Chorionic villi.
- Decidua - endometrial stromal cells with a nucleus central, eosinphilic cytoplasm, well-defined cell borders.
- No mitotic activity.
- Ectatic blood vessels.
DDx:
- PSTT.
Image
IHC
- MIB1 ~0%.
- Used to differentiate from PSTT.
See also
References
- ↑ URL: http://www.webpathology.com/image.asp?case=565&n=7. Accessed on: 22 May 2014.
- ↑ 2.0 2.1 URL: http://moon.ouhsc.edu/kfung/IACP-OLP/TC-Text/TC-01-Supp.pdf. Accessed on: 15 August 2011.