Yu J, Li Y, Pan HX, He J, Nie X. Rectosigmoid endometriosis: Practical approaches to improve the possibility of obtaining a definite preoperative biopsy diagnosis.
Shijie Huaren Xiaohua Zazhi 2012;
20:3795-3800. [DOI:
10.11569/wcjd.v20.i36.3795]
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Abstract
AIM: To discuss the methods for improving the accuracy of preoperative diagnosis of rectosigmoid endometriosis.
METHODS: From December 2002 up to now, six patients with intestinal endometriosis were treated at our hospital. The clinical manifestations, enteroscopic findings, and histopathological manifestations of preoperative biopsy specimens and postoperative specimens removed by laparotomy or laparoscope resection were analyzed. A review of the literature was also performed.
RESULTS: Four (66.7%) cases of the rectosigmoid endometriosis were misdiagnosed clinically, including 1 case misdiagnosed as glandular dysplasia and 3 cases as chronic inflammation (including 1 case as ulcers). Immunohistochemical staining for ER, PR, CK7, K20 and CD10 were performed. Normal colorectal epithelia were negative for CK7, ER, and PR, whereas rectosigmoid endometriosis was positive for CK7, ER, and PR and showed endometrial stromal expression of CD10.
CONCLUSION: Combination of clinical manifestations, colonoscopic findings, and immunohistochemistry can improve the accuracy of preoperative diagnosis of endometriosis.
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