Calcified faecoliths may be seen in diverticula of the colon or in the appendix. The presence of an appendicolith is a strong indication that the patient has acute appendicitis
Appendicolith The oval calcified shadow (arrowhead) is a faecolith in the appendix.
Note the dilated loops of small bowel in the centre of the abdomen due to peritonitis – the so-called sentinel loops.