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 o
f 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 incorpora
tion and remodeling and excellent function of the shoulder.