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Updated: Feb 2, 2026

A Syngeneic Murine Model of Endometriosis using Naturally Cycling Mice
Published on: November 24, 2020
Supernumerary ovary on recto-sigmoid colon with associated endometriosis
Chul Kwon Lim1, Hee Jin Kim1, Joon Sook Pack1
1Department of Obstetrics and Gynecology, Eulji University Hospital, Eulji University School of Medicine, Daejeon, Korea.
Abstract:
A supernumerary ovary is a rare gynecological anomaly, and is usually excised due to its malignant transformation potential. We report a case of a supernumerary ovary and endometriosis situated on the anterior rectosigmoid colon. When laparoscopy was conducted, a firm, 5-cm mass was discovered on the anterior rectosigmoid colon along with normal ovaries. In this case, the discovery of a supernumerary ovary implied the presence of endometriosis. It is unusual for endometriosis and a supernumerary ovary to exist simultaneously.
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