Abstract
The patient was a 60-year-old man who was urgently hospitalized with a chief complaint of upper abdominal pain. Examination revealed an approximately 20-cm tumor mass with poor contrast enhancement adjacent to the lateral segment of the liver as well as a 3-cm tumor mass in liver segment 6, gallstones, and choledocholithiasis. Due to marked tumor adhesion, the tumor of the left lateral segment was resected along with the transverse colon. This was followed by resection of the tumor in S6, cholecystectomy, and choledocholithectomy. The postoperative pathologic examination revealed the giant tumor to be a foreign-body granuloma containing a suture, and the tumor of liver segment 6 was diagnosed to be a hepatocellular carcinoma. It was later revealed that a liver biopsy had been performed for gastric cancer surgery 14 years ago. We assuned that a suture used in liver biopsy 14 years ago was the cause of the granuloma.