BACKGROUND:

Abdominal wall endometriosis is the coexistence of endometrial tissue on the parietal peritoneal surface with a reported incidence of 0.03 to 3.5%. Its cause is not well understood.

CLINICAL CASE:

35-year-old female patient with a gyneco-obstetric history of: three pregnancies, three cesarean sections, last five years prior to surgery, in which an obstetric hysterectomy was performed, indicated by transoperative bleeding. The current presentation began 24 hours before her admission to the emergency department with spontaneous pain in the right iliac fossa, difficult to relate to menstrual cycles due to her surgical history, accompanied by increased volume and nausea. Initial examination revealed two intra-abdominal masses, confirmed by computed tomography, located above the aponeurosis. Surgery was performed to remove both masses. Histopathologic examination revealed tumors compatible with endometriosis.

CONCLUSION:

Endometriosis is a very common disease in the world, but not in the abdominal wall. Although its cause is still not known with certainty, it is known that direct inoculation (often due to gynecologic surgery) and cell proliferation play a relevant role in its origin.