[A woman with an abdominal mass].

A 46-year-old woman presenting with gastroesophageal reflux complaints, unresponsive to treatment, was found to have a large lower abdominal mass during physical examination. CT-scanning revealed multiple fatty deposits under the right hemidiaphragm, besides the heterogenic lower abdominal mass. The mass and most of the deposits were removed surgically. Histological examination confirmed the diagnosis of a ruptured mature cystic teratoma with intraperitoneal deposits.