The collar button ulcer - A radiologic-pathologic correlation

Joel E. Lichtenstein, John E. Madewell, David S. Feigin

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


The collar button-shaped ulcer is a distinctive radiographic manifestation of inflammatory disease of the GI tract. Its hallmark is mucosal ulceration with undermining submucosal extension limited by the relatively resistant underlying muscle wall. Such a process is commonly associated with ulcerative colitis where it may be seen diffusely in advanced stages of the acute disease. Occasionally, however, it may be seen in any ulcerating inflammatory disease. In the more aggressive transmural diseases, it is likely to be a localized and transient phenomenon. The same pathophysiological mechanism gives rise to the common appearance of benign ulceration anywhere in the GI tract and, particularly, in the undermined gastric ulcer.

Original languageEnglish (US)
Pages (from-to)79-84
Number of pages6
JournalGastrointestinal Radiology
Issue number1
StatePublished - Dec 1979
Externally publishedYes


  • "Collar button" ulcer
  • Amebic colitis
  • Granulomatous colitis
  • Inflammation
  • Pathologic correlation
  • Tuberculous colitis
  • Ulcerative colitis

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Gastroenterology


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