Imaging Manifestations of Chest Wall Lipoma Mimicking Liposarcoma

Abstract

A 61-year-old female with an abnormal shadow on chest radiography was admitted to our hospital. Chest radiography and computed assisted tomography showed a 4.5 cm tumor with an irregular margin penetrating the right seventh intercostal muscle. The image showed tumor invasion to the chest wall. We performed complete resection of the tumor and partial resection of the ribs. The pathology revealed that it was a lipoma, and was diagnosed as an hourglass transmural lipoma. The patient’s postoperative course was uneventful, and she was discharged from the hospital on postoperative day 7. She has since been undergoing follow-up as an outpatient, with no signs of recurrence to date.