School ager with right lower quadrant pain Pediatric Imaging Gastrointestinal June 16, 2021May 20, 2021 AXR AP shows an oval-shaped calcification in the right lower quadrant just above the right iliac crest at the level of the L4 vertebral body. The diagnosis was acute appendicitis with an appendicolith within the appendix. Related Published June 16, 2021May 20, 2021