An Endometrioma in Abdominal Wall without Previous Abdominal Surgery: Report of a Case

Extrapelvic endometriosis is defined as endometriotic lesions found elsewhere in the body, including the cervix, vagina, vulva, intestinal tract, urinary tract, abdominal wall, thoracic cage and lungs, extremities, and central nervous system. Endometriosis involving the abdominal wall is an unusual phenomenon that should be considered in the differential diagnosis of abdominal wall masses in women. We report herein a 40-year-old female who presented with a mass in the lower abdomen and painful sensation was associated with menstruation. The location of the endometrioma was the rectus muscle sheath. The mass was excised from the subcutaneous fat down to the anterior abdominal fascia. Histolopathology confirmed endometriosis. No recurrence was found after operation for 18 months.