Fig. 18From: Lesions involving the outer surface of the bone in children: a pictorial reviewDiffuse periosteal reaction from postprostaglandin therapy in a 3-month-old infant. An antero-posterior radiograph of the chest shows diffuse periosteal reaction at the medial aspects of both humeri (arrows), along the undersurface of the clavicles and surrounding the ribs. This patient has a complex congenital heart disease for which he received cardiac surgery including a patent ductus arteriosus (PDA) stentBack to article page