Herniating Lipoma into the Chest
CT scan at the level of the hiatus of an 80year old male shows fat herniating from the abdominal cavity into the thoracic cavity continuing to the hilum posterior to the left atrium. This may represent a lipoma, less likely a liposarcoma or herniation of retroperitoneal fat without associated herniation of the stomach
Ashley Davidoff MD TheCommonVein.net