Aggresive Aneurysmal Bone Cyst: Two Case Report

Two cases of an aggresive aneurysmal bone cyst that involved the distal femur and forearm in 20-year-old men were presented. The recurrence of the aggressive aneurysmal bone cyst with severe infection in the femur in spite of total excision caused deterioration of the extremity circulation. Hip disarticulation was applied for the treatment. The second case with an alytic expansile lesion involving the 2/3 of the right ulna was surgically treated by total excision and reconstruction of the ulna by using the ipsilateral fibula. At the 2-year follow-up, the patient had complete incorporation of the fibular graft.The differential diagnosis of the aneurysmal bone cyst from the local aggressive and malignant tumor and different treatment options were discussed with the literature. (JAREM 2011; 1: 65-8)