Abstract
Anatomico-radiological study of a humerus with Paget's disease and unhealed fracture makes it possible to demonstrate the uneven development of the disease according to local conditions. The possible role of a bone dystrophy similar to that in Sudeck's disease which might — along with a slow virus infection — be involved in the development of Paget's disease is discussed. The discussion is based on the present case, on two previous studies as well as on data found in the literature.