대한대장항문학회

Local excision for rectal cancer can yield comparable results to traditional radical<br>operations in selected group of patients. We have retrospectively analyzed 32 cases of<br>rectal cancer patients treated by transanal local excision for curative intent at the<br>Department of Surgery, Seoul National University Hospital between 1990 to 1996. These<br>32 cases represent 4.1% of total rectal cancer patients treated during the same period.<br>Mean age of the patients were 57.0?1.8 years. Median tumor size was 2 cm(mean :<br>2.4±1.1 cm), and the median distance from the anal verge to the lower margin of the<br>tumors was 5 cm(mean : 5.1±1.7 cm). Deepest layer invaded by cancer was as follows:<br>mucosa, 31.3%; submucosa, 56.3%; muscularis propria, 9.4%; subserosa, 3.1%. Sixty-nine<br>percent of the patients had well differentiated tumors and 31% had moderately<br>differentiated tumors, while none of the cancers were poorly differentiated. No patient<br>received any adjuvant therapy. After a median follow-up of 21 (range: 1∼83) months,<br>no local recurrence occurred in any of the patients. Our results indicate that transanal<br>local excision can be performed with favorable outcome in selected group of rectal<br>cancer patients.<br>