Curative Resection of Transverse Colon Cancer with Duodenal Invasion and Tumor Thrombus of the Superior Mesenteric Vein—Report of a Case—

Abstract

An 84-year-old man presented with anemia and was diagnosed with transverse colon cancer. A tumor invaded the second part of the duodenum with a fistula formation, and tumor thrombus to the superior mesenteric vein via the gastrocolic trunk of Henle were observed by preoperative imaging diagnosis. Intraoperative findings showed no peritoneal dissemination or liver metastasis, so we judged that R0 resection was possible, and performed right hemicolectomy and subtotal stomach-preserving pancreatoduodenectomy with combined resection and reconstruction of the superior mesenteric vein. Pathological findings were pT4b (duodenum), pN0, pStage IIc, R0, CurA. The patient is currently alive without recurrence as of 9 months after the surgery. Even for locally advanced colorectal cancer with invasion to other organs or tumor thrombus, a good prognosis can be expected if R0 resection is performed, so it is necessary to consider the optimal surgical procedures according to tumor extension.