Epiploic appendage

Dr Daniel J Bell and Dr Henry Knipe et al.

Epiploic appendages (or appendix epiploica, plural: appendices epiploicae) are peritoneum-lined protrusions of subserosal fat that arise from the surface of the large bowel

Epiploic appendages typically measure 1.5 x 3.5 cm but have been reported to measure up to 15 cm in length 4. There are between 50-100 of them in the large bowel and extend from the cecum (where they may be absent) to the rectosigmoid junction. They are distributed longitudinally in two rows on the medial (along the taenia libera) and the posterolateral (along the taenia omentalis) aspects of the large bowel. There is only one row of appendices epiplicoae along the transverse colon and there are none along the rectum.

They are supplied by one to two small nutrient arteries that pierce the bowel serosa; it is here where colonic diverticula are thought to arise.

Not normally visible on fluoroscopy, radiography or CT unless they are surrounded by contrasting material (e.g. contrast medium from HSG, hemoperitoneum or ascites) 4.

Anatomy: Abdominopelvic
Share article

Article information

rID: 26187
Section: Anatomy
Tag: cases
Synonyms or Alternate Spellings:
  • Appendices epiploicae
  • Epiploic appendages

Support Radiopaedia and see fewer ads

Cases and figures

  • Figure 1
    Drag here to reorder.
  • Case 1: easily seen with ascites
    Drag here to reorder.
  • Case 2 : epiploic appendages with ascites
    Drag here to reorder.
  • Updating… Please wait.

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

     Thank you for updating your details.