Teenager with knee pain Pediatric Imaging Musculoskeletal July 17, 2026April 22, 2026 AP radiograph of the knee (left) is unremarkable while lateral radiograph (right) shows infiltration and obscuration of the infrapatellar fat pad and fragmentation of the anterior tibial tubercle. The diagnosis was Osgood-Schlatter disease. Related Published July 17, 2026April 22, 2026