A CASE OF INTRAABDOMINAL FREE BODY WHICH WAS DIFFICULT IN DIFFERENTIATION FROM HEPATIC TUMOR

Abstract

A 71-year-old man undergone a right upper lobectomy for lung cancer one year earlier was found to have a tumor on the surface of the liver (S6) with abdominal echography and CT scan which were conducted for the purpose of postoperative systemic exploration. Primary or metastatic hepatic tumor was suspected. Since the tumor was present close to the surface of the liver, laparoscopic surgery was carried out. When the hepatocolic ligament was dissected and the liver was elevated cranially, a white tumor was identified on the dorsal aspect of the liver. The tumor was fixed to the surrounding tissues with rough connective tissue, but the tumor was easily removed by cutting these tissues. The removed tumor was 30 mm × 25 mm × 16 mm in dimension, 10 g in weight, and milky white in color and had a smooth surface. Histologically its center was composed of necrotic tissue with small chambers, which was inferred to be fatty tissue, and was surrounded by hyalinized fibrous tissue.