Background
Solid aneurysmal bone cyst or reparative granuloma of bone is a rare tumorlike condition that primarily affects the bone. It was first described by Jafe . as a non-neoplastic giant cell reparative granuloma of bone.
Patients and methods
This study included nine patients, with five males. Age ranged from 6 to 34 years at presentation, with mean age of 15.5 years. Femur was affected in three patients, where two of them was in the trochanteric region, and the third ones showed a recurrent distal femoral lesion; followed by distal tibia in two cases, where one of them also was a recurrent lesion; and a single case each in proximal tibia, distal ulna, clavicle, and pelvis. All cases were histologically diagnosed by either incisional biopsy (five cases) or after final treatment. Some cases had radiological and pathological differential diagnoses such as giant cell tumor, hyperparathyroidism, and osteosarcoma. Seven cases were treated by thorough curettage and hydrogen peroxide lavage, with an autologous nonvascularized fibula in two cases. Two cases were managed by en block excision. Follow-up period ranged from 18 to 50 months, with mean follow-up of 33.6 months.
Results
All curetted cases healed completely without local recurrence. All cases had excellent functional outcome.
Conclusion
Solid aneurysmal bone cyst is slightly different from ordinary type as it has wider age incidence, and it might have serious differential diagnosis as osteosarcoma, but it is treated almost the same way.