Aggressive aneurysmal bone cyst of the proximal humerus. A case report.

The case of an 11-year-old girl with a rapidly expanding, massive lesion in the right proximal humerus is reported. After biopsy, surgical treatment of the aneurysmal bone cyst consisted of aggressive intralesional resection with autogenous tibial strut grafting for reconstruction. After followup of 17 years with no recurrence of disease, there is excellent graft incorporation and remodeling and excellent function of the shoulder.