A Case Report of Radical Operation for Ascending Colon Cancer with Superior Mesenteric Vein Tumor Embolus

Treatment of tumor thrombus in the superior mesenteric vein due to advanced colon cancer with complete surgical resection and chemotherapy: a case report

“…In our case, CT showed occlusion of the SMV by the tumor thrombus and the presence of collateral circulation, enabling us to excise the SMV without revascularization. Table 1 shows the reported cases of colon cancer accompanied with tumor thrombus in the SMV [14][15][16][17][18][19][20][21][22]. Ten cases have been reported, including our case.…”

A case of ascending colon cancer accompanied with tumor thrombosis in the superior mesenteric vein treated with right hemicolectomy and greater saphenous vein grafting

“…Table 1 shows the reported cases of colon cancer accompanied with tumor thrombosis in the SMV and IMV in the Japanese population [ 3 , [7] , [8] , [9] , [10] , [11] , [12] , [13] , [14] , [15] ]. Including our case, seven and five cases in the SMV and the IMV, respectively, have been reported.…”

“…Given this, venous tumor thrombosis is likely to increase the risk of liver metastasis from primary colorectal cancer. Considering micrometastasis, adjuvant chemotherapy should be performed even after complete surgical tumor resection [ 2 , 13 ].…”

“…In the surgical treatment of tumor thrombosis in the SMV, which is a requisite drainage vein of the small bowel, we need to consider short bowel syndrome [ 13 ]. We were able to perform thrombectomy close to the root of the SMV using the greater saphenous vein graft.…”