Physiologic periosteal reaction of the newborn
|It is a single-layered physiological periosteal reaction of <2 mm which occurs in the new born, usually between 1 to 4 months (up to 6 months).|
Rana RS, Wu JS, Eisenberg RL. Periosteal reaction. AJR Am J Roentgenol. 2009;193 (4): W259-72.