Inflammatory pseudopolyp

An inflammatory pseudopolyp is an island of normal colonic mucosa which only appears raised because it is surrounded by atrophic tissue (denuded ulcerative mucosa). It is seen in long-standing ulcerative colitis.

It must be distinguished from inflammatory polyps, which are regions of inflamed and elevated mucosa surrounded by granular mucosa.

Radiographic features

On CT scan or barium enema, inflammatory pseudopolyps appear as innumerable polypoid colonic filling defects. These area are usually enhancing on contrast-enhanced CT scan.

Share article

Article information

rID: 21014
Tag: cases, refs, stub
Synonyms or Alternate Spellings:
  • Inflammatory pseudopolyps
  • Inflammatory pseudo-polyp

Support Radiopaedia and see fewer ads

Cases and figures

  • Case 1 - numerous inflammatory pseudopolyps
    Drag here to reorder.
  • Updating… Please wait.

     Unable to process the form. Check for errors and try again.

     Thank you for updating your details.