抄録
An ectopic ovary is a very rare condition. A 27-year-old woman underwent laparoscopy because of a dermoid cyst on the right ovary and was found to have a cystic mass in the mesentery of the sigmoid colon. Despite thorough inspection, her left ovary was not found in the usual place. The left infundibulopelvic ligament was also nonexistent. Pathological examination revealed ovarian stromata in the cystic mass in the mesentery of the sigmoid colon.
