A CASE OF LIPOSARCOMA OF THE ABDOMINAL WALL IN WHICH A DEFECT OF THE ABDOMINAL WALL WAS RECONSTRUCTED USING AUTOLOGOUS FASCIA LATA

Abstract

A 58-year-old man was seen at the hospital because of a left lower abdominal mass. Abdominal CT revealed a giant tumor in the left lower abdomen, which had infiltrated into the left rectus muscle of the abdomen, being adjacent to the left iliopsoas muscle and greater psoas muscle posteriorly, and displacing the left exterior iliac artery and vein posteriorly. Because a malignant fibrous histiocytoma or liposarcoma was suspected from percutaneous needle biopsy, extended resection with a sufficient surgical margin from the tumor and reconstruction of the abdominal wall using autologous fascia lata to make up for a defect of the abdominal wall were conducted. The histopathological diagnosis was made as polymorphic liposarcoma, and the CYVADIC therapy was carried out to prevent any postoperative remote metastases. Liposarcoma arising in the abdominal wall is extremely rare, and there are no such case reports in Japan. Reconstruction of the abdominal wall using autologous fascia lata, which carriers a low risk of infection, is useful for malignant soft tissue tumors in the abdomen that require both abdominal wall reconstruction together with extensive local resection and postoperative chemotherapy.