Korean J Gastroenterol.  2016 Oct;68(4):214-217. 10.4166/kjg.2016.68.4.214.

A Case of Cecal Endometriosis Presenting as Subepithelial Tumor

Affiliations
  • 1Department of Internal Medicine, Gangneung Asan Hospital, University of Ulsan College of Medicine, Gangneung, Korea. gi@gnah.co.kr
  • 2Department of Pathology, Gangneung Asan Hospital, University of Ulsan College of Medicine, Gangneung, Korea.

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.

Keyword

Endometriosis; Colonic neoplasms

MeSH Terms

Appendix
Cecum
Colonic Neoplasms
Endometriosis*
Female
Genital Diseases, Female
Ligaments
Ovary
Peritoneum
Uterus

Figure

  • 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.

  • 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).


Reference

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