Inguinal Endometriosis: Unusual Cause of Groin Pain

Abstract

A previously healthy 42-year-old woman presented to the hospital with a 1-year history of right groin pain, which did not fluctuate with the menstrual cycle. We suspected an inguinal hernia or lymphadenopathy, but a right inguinal ultrasound revealed a mixed-echo mass with intralesional vascular flow (Figure Pelvic magnetic resonance imaging (MRI) revealed a mass that showed high intensity on T1-and T2-weighted images (Figure The mass was located at the apex of the inguinal hernia