Scar endometriosis: At the drain site following laparotomy

Endometriosis is described as the presence of functioning endometrial tissue (glands and stroma) outside the uterine cavity. The most common location is within the pelvis. However, extrapelvic endometriosis is a fairly uncommon disorder, and is difficult to diagnose. It can sometimes occur in a surgical scar. Scar endometriosis is a rare condition. It mostly follows obstetrical and gynecological surgeries. It presents as a painful, slowly growing mass in or near a surgical scar. It is often misdiagnosed, leading to unnecessary referrals. Gynecologists and general surgeons must be aware of this entity to avoid discomfort to the patient due to delay in diagnosis.