Non-ossifying fibroma

Case contributed by Dr Ammar Haouimi


Painful distal left thigh

Patient Data

Age: 9 years
Gender: Female

There is an expansile eccentric multiloculated lucent lesion with peripheral sclerotic rim, involving the posterolateral aspect of the diaphysometaphyseal region of the distal femur. No pathological fracture or periosteal reaction is seen.


The MRI sequences demonstrate a multiloculated cortical-based lesion of intermediate signal on T1WI, heterogeneous high signal on T2WI with peripheral low signal rim corresponding to the sclerotic border. The postcontrast sequences show moderate heterogeneous enhancement. No soft tissue mass or edema is seen.

Case Discussion

Radiographic and MRI features are most consistent with a non-ossifying fibroma of the distal femur.


Additional contributor: C. Boukaaba, MD

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Case information

rID: 74750
Published: 4th Mar 2020
Last edited: 4th Mar 2020
Inclusion in quiz mode: Included
Institution: Aurès Medical Imaging Center - Batna Algeria

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