Infant with a flat spot on the back of the head Pediatric Imaging Neurological May 2, 2022March 30, 2022 AP (left) and lateral (right) radiographs of the skull show the bilateral coronal sutures and lambdoid sutures and sagittal suture to be patent. There is some mild flattening along the posterior aspect of the skull The diagnosis was positional plagiocephaly. Related Published May 2, 2022March 30, 2022