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Osteoid osteoma

Case contributed by Iqbal Naseem
Diagnosis almost certain

Presentation

Pain in her left thigh since last few months.

Patient Data

Age: 12 yrs
Gender: Female

Note: This case has been tagged as "legacy" as it no longer meets image preparation and/or other case publication guidelines.

x-ray

Radiograph left thigh in AP and lateral projection was done.

Radiographs show increased cortical thickness involving the mid femoral shaft on the medial aspect with associated sclerosis and a narrow zone of transition. There is alsoa  focal round lucent / lytic focus within the center of the sclerotic lesion suggestive of a nidus.

Case Discussion

Features in a 12 year old patient is suggestive of an osteoid osteoma.

An osteoid osteoma is a benign bone tumor commonly seen in young individuals. It's hallmark is cortical thickening with a focal radiolucent central nidus.

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