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Related Experiment Videos

Appendiceal involvement in ulcerative colitis.

J R Goldblum1, H D Appelman

  • 1Department of Pathology, University of Michigan, Ann Arbor, USA.

Modern Pathology : an Official Journal of the United States and Canadian Academy of Pathology, Inc
|November 1, 1992
PubMed
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Appendiceal changes in ulcerative colitis (UC) occur in 62% of patients with pancolitis. This study found that appendiceal inflammation in UC always extends from the cecum, not as a skip lesion.

Area of Science:

  • Gastroenterology
  • Colorectal Surgery
  • Pathology

Background:

  • Limited data exists on appendiceal involvement in ulcerative colitis (UC).
  • Previous studies suggested variable appendiceal involvement in UC, with some proposing skip lesions.
  • Appendiceal changes in UC require further investigation to understand their relationship with cecal involvement.

Purpose of the Study:

  • To determine the frequency of appendiceal involvement in ulcerative pancolitis.
  • To investigate whether appendiceal inflammation in UC occurs as a skip lesion or in continuity with the cecum.

Main Methods:

  • Analysis of colons and appendices from 87 patients undergoing total proctocolectomy for ulcerative pancolitis.
  • Histopathological examination to assess the presence and extent of colitic changes in the appendix and cecum.

Related Experiment Videos

  • Correlation of appendiceal inflammation with cecal involvement and disease activity.

    • Main Results:

    • 66 out of 87 patients (62%) with ulcerative pancolitis showed colitic changes in the appendix.
    • Appendiceal inflammation was consistently observed in conjunction with cecal involvement.
    • In cases with discrepancies in disease activity, the appendix was never more severely involved than a normal or near-normal cecum.

    Conclusions:

    • Appendiceal involvement in ulcerative pancolitis consistently occurs in continuity with the adjacent involved cecum.
    • Appendiceal inflammation in UC does not appear to manifest as an isolated skip lesion.
    • Disease activity in the appendix correlates with, but is not independent of, cecal disease activity.