- Benign bone tumor (osteogenic) derived from osteoblasts
- Common sites : Proximal femur (most common),tibial diaphysis, vertebrae
- Histology – Nidus of osteoid and immature osteoblasts surrounded by a rim of reactive bone formation
- X- ray shows radiolucent nidus (< 2 cm) surrounded by reactive bone
- Treatment – observation and NSAIDs, radiofrequency ablation, surgery
- Osteoid osteoma in spine can cause painful scoliosis, surgical intervention of lesion resection could well improve scoliosis and relieve lumbar pain
- Newer techniques : computed tomography-guided percutaneous radiofrequency thermal ablation, Laser photocoagulation
