The Lymph Node Metastasis and Lymph Node Dissection in Cancer of the Right Colon.

概要

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One hundred sixteen patients underwent radical operation for carcinoma of the right colon from 1979 to 1990. Lymph node metastases were seen in 49 patients (42.2%). Neither paracolic nor epicolic lymph node metastasis were found more than 5 cm distance from the edge of primary tumor.<BR>Cumulative five year survival rates of Dukes' A, Dukes' B, and Dukes' C were 81.8% 84.3%, and 74.9%, respectively. According to the general rules for clinical and pathological studies on cancer of the colon, rectum, and anus by the Japanese Research Society, a five year survival rate of absolute curative resection was 81.6% and relative curative resection was 72.8 % (P=0.06) . But the survival rate of relative non-curative resection cases due to insufficient colon resection was 75.0%, which was almost the same as that of curative resection.<BR>The case with lymph node metastasis caused an increase in the incidence of recurrence, and also the case with invasion to serosa and the cases whose histological diagnosis was mode-rately or poorly differentiated adenocarcinoma also caused recurrence.<BR>If colon is resected 5 cm away from the edge of the primary tumor, almost all cases are expected to be curative.
日本大腸肛門病学会の論文