Back ورم داخل ظهارة البطانة الرحمية Arabic Neoplasia intraepiteliale endometriale Italian എൻഡോമെട്രിയൽ ഇൻട്രാപിത്തീലിയൽ മുഴകൾ Malayalam 子宫内膜上皮内瘤变 Chinese
.jpg)
- Architectural gland crowding
- Altered cytology relative to background glands
- Minimum size of 1 mm
- Exclusion of adenocarcinoma
- Exclusion of mimics
Mitoses should also preferably be seen. Compare to normal endometrial gland at right.
Endometrial intraepithelial neoplasia (EIN) is a premalignant lesion of the uterine lining that predisposes to endometrioid endometrial adenocarcinoma. It is composed of a collection of abnormal endometrial cells, arising from the glands that line the uterus, which have a tendency over time to progress to the most common form of uterine cancer—endometrial adenocarcinoma, endometrioid type.
- ^ Owings, Richard A.; Quick, Charles M. (2014). "Endometrial Intraepithelial Neoplasia". Archives of Pathology & Laboratory Medicine. 138 (4): 484–491. doi:10.5858/arpa.2012-0709-RA. ISSN 1543-2165.