Abstract
During a 21-year period, 511 patients were treated for colorectal carcinoma in the department, and ten of them who were younger than 30 years of age were retrospectively studied. The sex ratio were virtually 7:3, there being a male dominance. Five tumors were located in the rectum and no tumors were observed in the ascending colon or cecum. Familiar polyposis was observed in four patients. The histologic types in all patients were well or moderately differentiated adenocarcinoma. Liver metastases or peritoneal dissemination were observed in 4 patients. Colorectal carcinoma in the young adults may grow fast, because 6 patients were in stage IV, Dukes C, and Astler & Coller C2 in spite of shorter disease-period before the diagnosis. The 5-year survival rate in all patients was 30%, whereas that of the resected patients was 40%. When resected cases were studied by dividing into advanced cases in Dukes B or C and 3 early cases in Dukes A, 4 cases in the former died of recurrence within 2 years, but all 3 cases are still alive more than 5 years without recurrence, where the invasion depth was less than pm with n (-).
Thus, the early diagnosis of colorectal carcinoma is a key point for the young adults.
