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23 year-old with left jaw pain

23 year-old with left jaw pain


CT axial noncontrast bone windows

CT axial noncontrast soft tissue windows

CT coronal noncontrast bone windows


Diffuse sclerotic lesion of the body of left mandible with 5 mm nidus surrounded by lucent halo


osteoid osteoma, osteoblastoma


Osteoblastoma of mandible


Osteoblastoma is a benign bone tumor accounting for 1% of all bone tumors; it commonly involves the spine and the sacrum of young individuals, with less than 5% being localized to the posterior mandible. Radiologically, they are usually poorly defined, radiolucent/radiopaque lesions containing calcifications and not showing sclerotic borders or periosteal reactions.

Submitted by Hari Challa, MD, UW Neuroradiology Fellow