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

• Published in: Nippon Daicho Komonbyo Gakkai Zasshi Vol. 45; no. 6; pp. 823 - 828
• Main Authors: Yamaguchi, S., Ohki, S., Jo, T., Imai, S., Matsuo, K., Hamahata, Y., Fukano, M., Tokito, S., Masui, H., Hasegawa, S., Sato, Y., Yamakoshi, H., Fukushima, T., Tsuchiya, S.
• Format: Journal Article
• Language: English; Japanese
• Published: The Japan Society of Coloproctology 1992
• ISSN: 0047-1801; 1882-9619
• DOI: 10.3862/jcoloproctology.45.6_823

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. 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. 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. If colon is resected 5 cm away from the edge of the primary tumor, almost all cases are expected to be curative.