Abstract
We evaluated the clinicopathological features and prognosis of eight local recurrence cases of rectal cancer after curative operation (in 40 case). The mean duration until recurrence was 22 months, and the rate of recurrence by site was 18.8% for Rs, 20.0% for Ra, and 22.2% for Rb. High recurrence rates were seen in 46.7% for the maximum tumor diameter of 6.0cm or above and 50.0% for 2/3 of the circumference or above (p<0.05). The deeper the tumor invaded, the higher the rate of recurrence. The recurrence was as high as 36.4% for ly (+). High recurrence rates were seen for Dukes B and C ; recurrence was seen in 6.9% for the absolute curative resection group and in 54.5% for the relative resection group (p<0.01). Only three cases (37.5%) could be re-operated on for local recurrence. The five-year survival was 74.1% for the absolute curative resection group and 59.6% for the relative curative resection group. On the basis of the above finding, it is considered that the ly factor is involved in the local recurrence of rectal cancer and that it is required to remove lymph nodes extensively and completely.
