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- Children and adolescents
- 2nd decade of life
- Pain at night, relieved by aspirin or other NSAIDs
- Usually in tubular bones, often in vertebrae (painful scoliosis, dense pedicle)
- Can be polyostotic
- Surgery – main stay
- RFA and HIFU also used nowadays for treatment
Imaging
- Plain film
- Central nidus, surrounding sclerotic reaction
- Nidus may have calcification
- MRI
- Soft tissue or bone marrow edema around lesion may be sometimes seen in MRI
- Mixed signal from nidus
- Low signal in all sequence around nidus due to sclerosis
- Skeletal scintigram
- Focal hypervascularity, high uptake
- Negative scintigram rules out osteoma