J.Jpn. Surg. Soc.. 100(12): 782-786, 1999
Feature topic
USEFULNESS OF ENDOSCOPIC POLYPECTOMY IN EARLY COLORECTAL CANCER
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Department of lnternal Medicine, Kitasato University School of Medicine, Sagamihara, Japan Tomoe Katsumata, Masahiro Igarashi, Kiyonori Kobayashi, Miwa Sada, Kaoru Yokoyama, Katsunori Saigenji |
Among the polypectomized patients. 361 had pedunculated (lp)-type, 255 semipeduuculated (lsp)-type, and 48 sesile (ls)-type cancer. The early colorectal cancer was submucosal-invasive cancer (sm cancer) in 16.1％ of lp, 19.2％ of Isp, and 22.9％ of Is patients.
Among the surgically resected patients, sm cancer was present in 41.2％ of Ip, 62.1％ of Isp, and 58.1％ of Is patient in. The percentage of sm cancer and the tumor size surgically resected patients were greater than in poiypectomized patients.
Local recurrence and distant metastases were investigated after endoscopic polypectomy during follow-up. Two cases (0.4％) of local reccurence were detected after polypectomy among 555 patients with mucosal cancer. Twenty-three (19.8％) of 116 patients with sm cancer underwent surgical resection after polypectomy due to cancer invasion into the vessels and/or extension to the resected margin recognized in polypectomized specimens. Only one case (0.9％) of local reccurence and no distant metastases were detected after polypectomy in 116 patients with sm cancer.
Endoscopic polypectomy is very useful as a minimally invasive surgical technique in the protruding type of early colorectal cancer.
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