[Post-traumatic avascular necrosis of the tubereculum majus]

Posttraumatic avascular bone necrosis occurs rarely on the major tubercle. In the early stage it may cause diagnostical problem at the evaluation of the Roentgenogram. It can be confused with a tumor, metastasis and tuberculosis. Later it shows a characteristic picture and causes rarely diagnostic difficulties. Authors describe a case of their own and discuss briefly the supposed causes of the disease, the possibilities of early recognition and treatment.