Abstract
Thirty-three patients who had submucosal massive illvasive carcilloma endoscopicallyresected and who did not be performed the additional bQwel resection were studied clinicopath-ologically. The tumors were located in the sigmoid colon in 24 patients, ill the rectum in 8 andin the ascending colon in 1. The incidence of Isp(subpeduncu.lated lesion)were seen in 13, thatof Is(sessle lesion)in 7 alld that of Ip(pedunculated lesion)in 7. Endoscopic resections weredone using the single resection technique in 29 patients and the piecemeal resection techniquein 4 patients. Histopathological study revealed that 32 patients had well differentiated tubularadenocarcinoma and one had moderately differentiated tubular adenocarcinorna. Thirtypatients had lymphvascular invasiorL Sixteen patients rejected to received the additional bowelresection and 14 patients did not received the resection because of the other disease. Twopatients had local recurrence and the tumor were resected curatively and the other patients hadno recurrence. Therefore, it was important to resect the recurrence early by following upcarefully.
