Journal List > Korean J Gastroenterol > v.68(4) > 1007567

Hwang, Kim, Shin, Jun, Hong, Eom, and Cheon: A Case of Cecal Endometriosis Presenting as Subepithelial Tumor

Abstract

Endometriosis is a benign gynecologic disease, characterized by the presence and growth of functional endometrial-like tissue outside uterus. This ectopic endometrial tissue is most commonly found in the peritoneum, ovaries and uterosacral ligaments, but extremely rarely there is involvement of the appendix or cecum. Here we report a case of cecal endometriosis presenting as a subepithelial tumor diagnosed by surgical excision.

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Fig. 1.
(A) Upright view of the abdomen shows nonspecific bowel gas. (B) Abdomen pelvic CT (arrow) shows eccentric wall thickening and minimal infiltration on mesentery. (C) Endoscopic finding shows a 30 mm protruding lesion with mucosa on cecum.(D) Gross finding. A mass-like lesion is noted in the cecal wall, from submucosa to subserosa. The cut sur-faces of the lesion are whitish gray and solid. No hemorrhage or necrosis is present.
kjg-68-214f1.tif
Fig. 2.
(A, B) Some endometrial glands and stromal cells are noted in the submucosa and proper muscle of the colon (H&E; A, ×20 and B, ×100).(C, D) The endometrial glandular are positive for ER, and the stromal cells for CD10 (×100, immunohistochemistry).
kjg-68-214f2.tif
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