Management of Proximal Femur Aneurysmal Bone Cyst with 10-year Follow-up - A Case Report.

Introduction: Aneurysmal bone cyst is a benign, most often non-neoplastic lesion affecting the bone. Malignant transformation is reported in certain cases, although rare. It commonly occurs in young adults with around 75% of the cases occurring in the first two decades and 95% occurring in the first 3 decades.