Endometriosis is defined as the presence of ectopic endometrial tissue outside the uterus.It is a common disease in menstruating females and intestinal involvement is not uncommon.Intestinal endometriosis most commonly involves the sigmoid colon, rectum, ileum, appendix, and cecum.However, the descending colon Engine Air Box Pre-Filter is a rare site of intestinal endometriosis.Although computed tomography (CT) findings of Handheld Games Mattel New/Sealed bowel endometriosis have been presented in several articles, there has been no report describing the CT findings of descending colon endometriosis above the pelvic cavity.
Here, we report a rare case of descending colon endometriosis located in the retroperitoneal space, in which the initial impression was acute colonic diverticulitis with a small abscess on preoperative multidetector CT.