Osteoid osteoma - tibia

Case contributed by Vitalii Rogalskyi
Diagnosis certain

Presentation

Consistent left upper leg pain for 4 years that gets worse at night. Use NSAIDs for pain relief.

Patient Data

Age: 13 years
Gender: Male
ct

Cortical thickening of posterior surface of upper third of left tibial shaft with ovoid lucent area. No aggressive periosteal reaction. Minor surrounding soft tissue thickening.

Small osteochondroma of lower third of left fibula.

Case Discussion

Classical CT appearance of osteoid osteoma which presents as cortical nidus. Classical clinical presentation is nocturnal bone pain. 

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