Common peroneal (fibular) neuropathy

Case contributed by Patrick Baird-Fraser
Diagnosis almost certain

Presentation

New left sided foot drop. Nerve conduction studies confirmed common peroneal neuropathy.

Patient Data

Age: 50 years
Gender: Female

The common peroneal nerve is swollen with high T2 signal within it as it passes over the fibular head. High T2 signal is also seen surrounding the common peroneal nerve at this level representing edema. These findings are in keeping with common peroneal neuropathy. 

Case Discussion

Common peroneal neuropathy is the most common mononeuropathy of the lower limbs with the most common cause being trauma 1.  

How to use cases

You can use Radiopaedia cases in a variety of ways to help you learn and teach.

Creating your own cases is easy.