Osteomyelitis - fibula

Case contributed by Dr Ammar Haouimi

Presentation

Painfull swelling of the left leg with redness of the lateral aspect.

Patient Data

Age: 12 years
Gender: Male
CT

There is an ill-defined lytic lesion of the proximal fibular metaphysis with cortical interruption toward the growth plate and medial cortex with a large circumferential perifibular collection of heterogeneous content and peripheral enhancement, measuring 10.5 x 5 x 3.5 cm and extending to the adjacent muscles.

Bubbly lucent intracortical defect with peripheral sclerosis of the medial aspect of the femur (length = 35 mm) suggestive of non-ossifying fibroma (incidental finding).

Case Discussion

CT features most consistent with osteomyelitis of the proximal fibular metaphysis with periosseous abscess formation extending to the adjacent muscles.

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