Mixed sclerosing bone dystrophy with regression of melorheostosis

I read with interest the case report by J. A. Kanis and J. G. Thomson (British Journal of Radiology, 48, 400). Their patient shows unilateral involvement of the long bones by endosteal sclerosis and osteopoikilosis in the right knee. In view of the rarity of these bone dysplasias it seems of interest to refer to a case of melorheostosis with involvement of all extremities, the pelvis and the sacrum (Elkeles, 1956).