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Endoscopic mucosal resection for colorectal neoplastic lesions

  • Original Contributions
  • Published:
Diseases of the Colon & Rectum

Abstract

PURPOSE: Endoscopic mucosal resection, which is a new option for endoscopic polypectomy of colorectal polyps without stalks, was evaluated on its usefulness in polypectomy. METHODS: Three hundred thirty-seven lesions, which were removed by endoscopic mucosal resection between January 1990 and January 1993, were studied. The endoscopic configuration of neoplastic lesions were classified into four types: flat, sessile, large sessile with distinct lobulations, and semipedunculated. RESULTS: The 337 lesions included 243 adenomas, 30 mucosal cancers, 13 submucosal cancers, 3 carcinoids, 43 hyperplastic polyps, and 5 inflammatory polyps. Of the 286 neoplastic lesions, excluding 3 carcinoids, 137 were flat, 81 were sessile, 18 were large sessile, and 50 were semipedunculated. The 137 flat lesions consisted of 125 adenomas, 10 mucosal cancers, and 2 submucosal cancers. The rate of complete removal was related to their size and configuration and was 87 percent in flat neoplastic lesions. Lesion diameters of greater than 20 mm and the large sessile-type configurations were factors that were associated with incomplete removal. Two (0.7 percent) cases were complicated by perforations, and one (0.4 percent) case was complicated by bleeding. CONCLUSION: Endoscopic mucosal resection is an useful option for complete removal of colorectal nonpolypoid adenomas and cancers.

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Authors and Affiliations

  1. Department of Internal Medicine, National Cancer Center Hospital, 5-1-1, Tsukiji, Chuo-ku, 104, Tokyo, Japan

    Toshihiro Yokota M.D.

  2. Department of Surgery, National Cancer Center Hospital, Tokyo, Japan

    Kenichi Sugihara M.D.

  3. Department of Internal Medicine, National Cancer Center Hospital East, Tokyo, Japan

    Shigeaki Yoshida M.D.

Authors
  1. Toshihiro Yokota M.D.
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  2. Kenichi Sugihara M.D.
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  3. Shigeaki Yoshida M.D.
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Yokota, T., Sugihara, K. & Yoshida, S. Endoscopic mucosal resection for colorectal neoplastic lesions. Dis Colon Rectum 37, 1108–1111 (1994). https://doi.org/10.1007/BF02049812

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  • DOI: https://doi.org/10.1007/BF02049812

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