Presentation
Left leg pain.
Patient Data
Age: 10 years
Gender: Male
From the case:
Non-ossifying fibroma of distal tibia
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A lucent lesion with a sclerotic rim located eccentrically in the distal metaphysis of tibia. A narrow zone of transition is seen. No associated periosteal reaction, cortical breach or associated soft tissue mass.
From the case:
Non-ossifying fibroma of distal tibia
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A cortical-based distal tibial medial aspect metaphyseal lesion is noted with low signal intensity on T1WI, high signal intensity on STIR with a thin hypointense rim on both sequences. No surrounding edema. There is heterogeneous post-contrast enhancement. It measures about 3.3 cm in length.
Rest of the imaged bones are normal
Case Discussion
The features are very likely of Non-ossifying fibromas (NOF); a larger version of fibrous cortical defect.
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