Endometrial hyperplasia classification
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Soujanya Thummathati, MBBS [2]
Overview
Endometrial hyperplasia may be broadly classified based on histology into simple and complex types. Endometrial hyperplasia may also be classified based on the presence or absence of cellular atypia (hyperplasia with cellular atypia and hyperplasia without cellular atypia).[1][2][3]
Classification
The World Health Organization (WHO) Classification System
The WHO Classification (1994)
- Endometrial hyperplasia may be classified based on glandular complexity and nuclear atypicality into the following types:[1][2][3]
Endometrial hyperplasia | |||||||||||||||||||||||||||||||||||||
Simple
| Complex | ||||||||||||||||||||||||||||||||||||
Simple hyperplasia with cellular atypia
| Simple hyperplasia without cellular atypia | Complex hyperplasia with cellular atypia
| Complex hyperplasia without cellular atypia
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The New WHO Classification (2014)
- The new WHO classification has been proposed to simplify clinical decision making, particularly when making treatment choices.[4]
- Endometrial hyperplasia may be classified according to new WHO classification (1994) into:
- Hyperplasia without atypia
- Atypical hyperplasia/endometrioid intraepithelial neoplasia
The Endometrial Intraepithelial Neoplasia (EIN) Classification
References
- ↑ 1.0 1.1 Scully RE. Histological typing of female genital tract tumours. Springer; 1994.
- ↑ 2.0 2.1 Endometrial hyperplasia. Radiopedia. http://radiopaedia.org/articles/endometrial-hyperplasia-1 Accessed on March 3, 2016.
- ↑ 3.0 3.1 Jorizzo JR, Chen MY, Martin D, Dyer RB, Weber TM (2002). "Spectrum of endometrial hyperplasia and its mimics on saline hysterosonography". AJR Am J Roentgenol. 179 (2): 385–9. doi:10.2214/ajr.179.2.1790385. PMID 12130438.
- ↑ Emons G, Beckmann MW, Schmidt D, Mallmann P, Uterus commission of the Gynecological Oncology Working Group (AGO) (2015). "New WHO Classification of Endometrial Hyperplasias". Geburtshilfe Frauenheilkd. 75 (2): 135–136. doi:10.1055/s-0034-1396256. PMC 4361167. PMID 25797956.