Infantile cortical hyperostosis (ICH) is a self-limiting inflammatory disease characterized by swelling of soft tissues and periosteal hyperostosis mainly affecting long bones, mandible, clavicles, and ribs. It usually affects infants less than 6 months of age and spontaneously heals in the first year of life. However severe prenatal form of ICH is lethal in which extensive hyperostosis affects nearly all long bones and the fetus presents with polyhydramnios.