What is the role of imaging studies in the diagnosis of peroneal mononeuropathy?

Updated: Jun 08, 2018
  • Author: Shaheen E Lakhan, MD, PhD, MS, MEd; Chief Editor: Nicholas Lorenzo, MD, MHA, CPE  more...
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The following imaging studies are useful in peroneal mononeuropathy. [24]

  • MRI of the lower thigh or popliteal fossa may be indicated if a mass lesion is suspected. Peripheral nerve nodular mass lesions and inflammatory pseudotumors of the peripheral nerves may be detected and confirmed by pathological excision. [25]

  • MRI can also detect variations in the posterior and distal extents of the biceps femoris muscle, which can produce a tunnel in which the common peroneal nerve travels causing peroneal nerve compression. [26]

  • Color duplex ultrasonography and angiography can reveal a popliteal artery pseudoaneurysm in the popliteal fossa. [27]

  • High resolution sonography of the common peroneal nerve may identify structural lesions of the peroneal nerve such as intraneural ganglion [28] and inflammatory changes in vasculitic neuropathy [29] .

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