Clinical studies on relation between lymphnode resection and prognosis in colon cancer.

概要

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For consideration of colon cancer operation, the relationship between length of bowel resection and prognosis was investigated. Five year survival is 78.9 per cent in 299 colon cancer operations except absolute non-curative operation. One hundred sixty-six patients have lymphnode metastasis (nf71, n234, n11). As for parallel lymphnode metastasis along with the colonic wall, there are 27 patients within 5 cm from the tumor edge, only two patients more than 5 cm. The relations between length of bowel resection from the tumor edge and five year survival are (1) less than 5 cm : 88 %, (2) 510 cm : 78 %, (3) more than 10 cm ; 80%. <BR>With regard to lymphonde metastasis of colon cancer, progression to central direction (intermediate nodes, main nodes) is more frequently than that to parallel with the colon (epicolic nodes, paracolic nodes). Especially only two parallel metastases are more than 5 cm in this surly. <BR>Curative operation will be provided by 5 cm resection of the colonic wall from the tumor edge.
日本大腸肛門病学会の論文