A Case Report of Inguinal Endometriosis

Abstract

  A 41-year-old woman, gravid 3, para 3, was admitted to the Department of Obstetrics and Gynecology at Tsuchiura Kyodo General Hospital, complaining of a tender, gradually enlarging mass in the right inguinal region during menses. Examination found the mass was about 2 cm in diameter, which protruded slightly (on lying position?). During menstrual periods, the mass enlarged and the pain intensified, but between menses, the mass decreased in size and the pain subsided. The case was diagnosed as inguinal endometriosis and then a preoperative GnRH analog therapy was given for six weeks to make a good operative local condition. Surgery was performed under general anesthesia and a mass about 4.0×3.0 cm in diameter near inguinal ligament was removed. The cut surface revealed small hemorrhagic areas or spaces. Microscopic examination of the dissected mass confirmed the diagnosis of inguinal endometriosis. It was found that the patient had a moderate inguinal swelling on the first visit to the hospital as an outpatient 7 days after operation, but the swelling disappeared shortly afterword. She has been receiving a post-operative GnRH analog therapy for 3 months to maintain a good local condition. The authors concluded that the appearance of a lump in the inguinal region and objective changes of the lesion in relation to the menstrual cycle should be considered as the symptoms of endometriosis.