Non-ossifying fibroma

Case contributed by Mohammad Taghi Niknejad
Diagnosis almost certain

Presentation

Male with leg pain

Patient Data

Age: 18 years
Gender: Male
x-ray

Well defined cortical based metadiaphyseal lytic lesion.

Case Discussion

Non-ossifying fibromas (NOF) are the most common of non-neoplastic fibrous bone lesions and are a larger version (>3 cm) of a fibrous cortical defect; both are encompassed by the term fibroxanthoma or metaphyseal fibrous defect.

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