Osteoid osteoma

Case contributed by Anil Kumar Geetha Virupakshappa
Diagnosis certain

Presentation

Ongoing pain of the right knee and hip for 4 months with intermittent limping.

Patient Data

Age: 12 years
Gender: Male
x-ray

Diffuse cortical thickening of medial aspect of right upper femoral shaft is noted with faintly visualized lucency within the cortical thickening.

ct

CT confirms the diffuse cortical thickening of medial cortex of right upper femoral shaft with a central lucent nidus.

Case Discussion

CT is the investigation of choice which shows diffuse cortical thickening and a lucent nidus within.

Treatment options include percutaneous radiofrequency ablation, cryoablation, core drill excision or laser photocoagulation.

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