Presentation
Foot drop for 2 months. NCV - Common peroneal nerve level pathology. Referred for nerve tracing to check anatomy / pathology
Patient Data
Age: 40 years
Gender: Male
From the case:
Intraneural ganglion cyst - peroneal nerve
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Peripheral nerve tracing was done from distal thigh to ankle.
- common peroneal nerve: hypoechoic/anechoic and thickened in its entire length
- articular branch: hypoechoic/anechoic and thickened in the entire visualized segment, directed superiorly or towards the proximal tibiofibular joint
- superficial and deep peroneal nerves: normal
- lateral sural nerve (cutaneous branch of the common peroneal nerve): hypoechoic/anechoic and thickened
- distal sciatic nerve and tibial nerves: normal
Case Discussion
Findings suggest an extension of an intraneural ganglion cyst from proximal tibiofibular joint to the articular branch of the common peroneal nerve, the ascent to common peroneal nerve and descent to a cutaneous branch from common peroneal nerve (possibly lateral sural cutaneous nerve).
No surgical follow-up.
Check out companion case no 24071 - Intraneural ganglion cyst - By Dr Jeremy Jones.
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