Teenager with back pain and scoliosis

Radiograph and CT of osteoid osteoma of the spine
AP radiograph of the thoracic spine shows an indistinct margin of the left T10 pedicle and mild scoliosis convex right. Axial CT without contrast of the T10 vertebral body with coronal and sagittal 2-D reconstructions shows a small round lucent nidus with central calcification in the left T10 pedicle surrounded by sclerosis.

The diagnosis was osteoid osteoma.