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  • An appendicolith is a calcified deposit located within the appendix.
  • Occasionally an appendicolith is visible on an abdominal X-ray, but often has similar appearances to calcified mesenteric lymph nodes.
  • Although appendicoliths are associated with appendicitis, the finding of an appendicolith on an abdominal X-ray is not in itself sufficient to diagnose appendicitis.
  • X-rays should not be performed routinely to look for an appendicolith.

Page author: Salisbury NHS Foundation Trust UK (Read bio)

Last reviewed: October 2019