Question: A 68-year-old woman, asymptomatic, with no medical history, underwent an abdominal computed tomography scan in a traumatic context. An enhanced series (Figure A) revealed a 4-cm cystic mass with tissue and calcified rim components located under the left liver (Figure A, arrow) inside the ligamentum teres. The lesion was supplied by a left hepatic artery branch. The frontal view showed the mass drainage into the left external iliac vein through a long pedicle (the umbilicus vein connected to the left inferior epigastric vein) (v).