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Related Experiment Videos

Large colorectal polyps: colonoscopy, pathology, and management.

E J Gyorffy1, J S Amontree, C M Fenoglio-Preiser

  • 1Division of Gastroenterology, University of New Mexico School of Medicine, Albuquerque.

The American Journal of Gastroenterology
|August 1, 1989
PubMed
Summary

Colonoscopic polypectomy is effective for most large colorectal polyps (≥3.0 cm). However, colectomy may be needed for incomplete removal or invasive cancer not curable by colonoscopy.

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Area of Science:

  • Gastroenterology
  • Surgical Oncology
  • Colorectal Surgery

Background:

  • Large colorectal polyps (≥3.0 cm) pose challenges for complete removal and cancer assessment.
  • Determining the efficacy of colonoscopic polypectomy for these large lesions is crucial for patient management.

Purpose of the Study:

  • To evaluate the oncologic and technical success of colonoscopic polypectomy for large colorectal polyps (≥3.0 cm).

Main Methods:

  • Retrospective review of 48 large colorectal polyps (≥3.0 cm) in 46 patients between 1984 and 1987.
  • Analysis of polyp histology, treatment method (colonoscopic polypectomy vs. colectomy), and patient outcomes.

Main Results:

  • Of 48 large polyps, 20 were benign, 20 had noninvasive carcinoma, and 8 had invasive carcinoma.

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  • Colonoscopic polypectomy was performed on 32 polyps; 4 patients required colectomy due to incomplete excision or invasive cancer.
  • Two submucosal invasive cancers were successfully removed colonoscopically; 16 polyps were surgically removed, primarily right-sided lesions.

    • Conclusions:

    • Colonoscopic polypectomy is oncologically and technically successful for the majority of large colorectal polyps.
    • Colectomy is necessary for a subset of large polyps with incomplete removal or invasive cancer unsuitable for colonoscopic excision.