Melorheostosis with Osteopoikilosis, also known as mixed sclerosing bone dystrophy, is related to mixed sclerosing bone dystrophy with extra-skeletal manifestations and melorheostosis, isolated. An important gene associated with Melorheostosis with Osteopoikilosis is LEMD3 (LEM Domain Containing 3). Affiliated tissues include bone and skin, and related phenotypes are abnormal cortical bone morphology and osteopoikilosis