Benign Osteoid Matrix Bone Tumors

Abstract Chapter 52 on benign osteoid matrix bone tumors includes osteogenic (meaning osteoid or bony matrix producing) tumors such as osteoid osteoma and osteoblastoma. Osteogenic lesions, or those that form osteoid matrix, are most commonly benign. Enostoses and osteomas are incidentally detected. Osteoid osteomas and osteoblastomas often produce pain and deformity. Important imaging findings that are essential for diagnosis of these entities are discussed with typical examples using radiographs, CT, and MRI. In many cases, imaging can be helpful to direct definitive therapies, such as radiofrequency ablation. A concise discussion on treatment options has also been included.