Sentinel loop

A sentinel loop is a short segment of adynamic ileus close to an intra-abdominal inflammatory process.

The sentinel loop sign may aid in localising the source of inflammation. For example, a sentinel loop in the upper abdomen may indicate pancreatitis, while one in the right lower quadrant may be due to appendicitis.

Share article

Article information

rID: 2031
Section: Signs
Synonyms or Alternate Spellings:
  • Sentinel loops
  • Sentinel bowel loop

Cases and figures

  • Drag
    Case 1: due to acute appendicitis
    Drag here to reorder.
  • Updating… Please wait.

    Alert accept

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

    Alert accept Thank you for updating your details.