Teenager with chronic right hip pain and acute left hip pain Pediatric Imaging Musculoskeletal January 17, 2020December 14, 2019 AP (above) and frogleg (below) radiographs of the pelvis shows the right femoral head to be flat and enlarged with femoral neck shortening. The left femoral epiphysis is slipped posteromedially. The diagnosis was chronic right Legg-Calve-Perthes disease and left slipped capital femoral epiphysis. Related Published January 17, 2020December 14, 2019