School ager with long-standing left limp and occasional fever Pediatric Imaging Musculoskeletal December 15, 2019November 22, 2022 AP radiograph of the proximal left femur shows a lucent lesion containing multiple septations that is associated with extensive cortical thickening and periosteal reaction. Percutaneous bone biopsy was performed. The diagnosis was chronic osteomyelitis of the left femur. Related Published December 15, 2019November 22, 2022