Intra-articular benign osteoblastoma of the acetabulum: A case report

The acetabulum is an unusual location for benign osteoblastoma, usually see n in adolescents and young adults. This article reports a case of an intra- articularly expanding benign osteoblastoma of the acetabulum in a 6-year-ol d boy. The diagnostic and surgical features of the disease in this unusual location at this young age are discussed. Excisional biopsy and curettage o f the lesion followed by bone grafting resulted in healing of the acetabula r lesion without acetabular dysplasia, but with a resultant core magna.