Inguinal Endometriosis: a Report of Two Cases and a Review of the Literature

The inguinal region is an uncommon site for endometriosis (1,2). Endometriosis in the groin is usually located in the extraperitoneal portion of the round ligament, but has been described in other anatomical structures in this region such as in inguinal hernial sacs, lymph nodes, the canal of Nuck, and in relation to femoral vessels and femoral hernia (3). However, this report does not include these sites. The incidence of endometriosis in the extraperitoneal part of the round ligament was found to be 0.3-0.6% among women suffering from endometriosis in general (1-6). The first case was reported in 1896. A history of pain between menstruation periods and tenderness together with a lump is important in differentiating this condition from another inguinal pathology (1).