Presentation
Swelling and pain in the right upper leg for three months.
Patient Data
Age: 10 years
Gender: Male
From the case:
Superficial peroneal nerve sheath tumour
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The anterolateral upper leg over the head of the fibula shows a well-defined, mixed solid and cystic lesion, oval-shaped with cord-like continuation at the upper and lower end of the lesion at the expected location of the superficial peroneal nerve.
Case Discussion
The ultrasound findings are very convincing of a peripheral nerve sheath tumour of the superficial peroneal nerve; a cystic component and eccentricity favour a schwannoma over a neurofibroma.
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