23 year-old with left jaw pain

This is unpublished
Panorex.
Panorex
CT axial noncontrast bone windows.
CT axial noncontrast bone windows
CT axial noncontrast soft tissue windows.
CT axial noncontrast soft tissue windows
CT coronal noncontrast bone windows.
CT coronal noncontrast bone windows

Findings:

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

DDX:

osteoid osteoma, osteoblastoma


Diagnosis:

Osteoblastoma of mandible

Discussion:

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