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Joseph Junewick, MD FACR
over 4 years ago
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Osteoid Osteoma

Case Detail

Anatomy: Musculoskeletal
Junewick
Joseph Junewick, MD FACR
Diagnostic Category: Neoplasia Benign
Created: over 5 years ago
Updated: over 5 years ago
Tags: PEDS
Modality/Study Types: MR
Activities:
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History

School-aged male with ankle pain and no history of trauma or infection.


Case Images


Diagnosis

Osteoid osteoma

Findings

MR – Sagittal IR, axial fat-suppressed T2, and sagittal and axial post-gadolinium fat-suppressed T1 images demonstrate IR, T2 and post-gadolinium hyperintense lesion in the tibial epiphysis.

Discussion

Osteoid osteoma (OO) is a common benign bone tumor. A caucasian male in the 2nd decade of life with well-localized pain which is worse at night and relieved by nonsteroidal anti-inflammatory medications is the classic scenario for OO.

OO are usually medullary more often than cortical or subperiosteal; more often metaphyseal, more than dimetaphyseal, diaphyseal, or epiphyseal. OO are most common in the femur followed by the tibia; tubular bones are more common than flat bones.

OO can be diagnosed by conventional radiography, CT, scintigraphy and MR.



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