Abstract
A 68-year-old man with a 16 year history of ulcerative colitis underwent surveillance colonoscopy in September, 2005 ; neither cancer nor dysplasia was detected. In a colonoscopy study in July, 2006, rectal cancers were found. Abdominal CT showed multiple swollen lymph nodes, considered to be metastases. Pathological study revealed poorly and moderately differentiated adenocarcinoma with multiple metastases in the submucosal layer of the rectum and in lymph nodes. There was no dysplasia near the cancer. Therefore, we concluded that the rectal tumor was colonic cancer.
We present herein a rare case of colitic cancer with extraordinarily rapid progression, less thar ten months.
