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June 2011

Abnormal peroneal nerve
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Clinical information

Palpable mass and peroneal nerve neuropathy

Ultrasound Images & Clips

Perineural fibrolipoma of the peroneal nerve

Longitudinal image of the peroneal nerve next to the fibular head. The proximal part of the nerve shows a normal fascicular pattern. The distal part is abnormal
Longitudinal image of the peroneal nerve next to the fibular head. The proximal part of the nerve shows a normal fascicular pattern. The distal part is abnormal
Another longitudinal image of the peroneal nerve with a normal proximal and abnormal distal part
Another longitudinal image of the peroneal nerve with a normal proximal and abnormal distal part
Longitudinal image of the distal part showing a lipomatous structure
Longitudinal image of the distal part showing a lipomatous structure
Longitudinal combined image of the lipomatous structure in relation to the peroneal nerve
Longitudinal combined image of the lipomatous structure in relation to the peroneal nerve
Another longitudinal image showing the relation of the lipomatous structure and the peroneal nerve
Another longitudinal image showing the relation of the lipomatous structure and the peroneal nerve
Transverse image of the lipomatous structure
Transverse image of the lipomatous structure
MRI image showing the peroneal nerve
MRI image showing the peroneal nerve
MRI image showing the lipoma
MRI image showing the lipoma
This lesion also has a relation with peroneal nerve. In this case the lesion is cystic and represents a neural ganglion cyst that arises in the tibiofibular junt and extends along the nerve
This lesion also has a relation with peroneal nerve. In this case the lesion is cystic and represents a neural ganglion cyst that arises in the tibiofibular junt and extends along the nerve

Conclusion

The first lesion proved to be a perineural fibrolipoma of the peroneal nerve. The patient was not operated because she had minor symptoms and because of the risk of nerve injury.
The second patient with the neural ganglion cyst was operated but had loss of peroneal function post surgically. The function returned after a few months. Another case of a neural ganglion cyst is presented as case of the month January 2006
In case of a lipoma or a ganglion cyst always check if there is continuity with a nerve

Details

  • Sex: Female
  • Age: 52

Created with

  • Fujifilm Ultrasound System
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photo Taco Geertsma
Author

Dr. Taco Geertsma

Retired Radiologist, Gelderse Vallei Hospital

Dr. Taco Geertsma is the founder of UltrasoundCases.info and a retired radiologist and has worked in the Gelderse Vallei hospital from January 1, 1983. till July 1, 2014. He was the head of the ultrasound department for many years.

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