Mildly comminuted fracture of the humerus is seen at the junction of the proximal and middle thirds of the diaphysis. The cortex in this region is thinned with the impression of an expansile medullary lesion. The medulla had a somewhat permeated appearance with a broad zone of transition. No definite periosteal reaction can be identified. Humeral head is rotated, however the shoulder joint is enlocated.