Presentation
20 year old male with knee pain.
Patient Data
Age: 20 years old
Gender: Male
From the case:
Non ossifying fibroma
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Left distal femoral diametaphyseal eccentric well-defined lytic lesion with sclerotic rim. No cortical disruption, associated soft tissue component or periosteal reaction.
From the case:
Non ossifying fibroma
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Left distal femoral diametaphyseal eccentric low T1W signal lesion, with some mixed T2W signal. No cortical disruption, associated soft tissue component or periosteal reaction.
Case Discussion
Plain x-ray and MRI appearances of non-ossifying fibroma, which are important to recognize as this is a "do not touch" bone lesion that does not require biopsy.
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