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MR neurography of radial nerve fascicle torsion

Case Study
Wang, Guangbin, M.D., Ph.D. Shandong Medical Imaging Reseach Institute • China, People's Republic of

Patient history

A 23-year-old male miner presented with left hand paralysis for three 3 days. Ultrasound showed an hourglassshaped appearance in the radial nerve fascicle. He underwent MRI neurography (MRN) at Shandong Medical Imaging Research Institute, China.

MR examination

The patiënt was examined on Achieva 3.0T TX with SENSE Flex L coil, patient in head-first position, scan time 3:54 min.



Click on an image to enlarge.
Paralysis of hand Ultrasound
Paralysis of hand
Ultrasound shows one hourglassshaped appearance in the radial nerve fascicle.
Coronal T2-weighted SPAIR MRI shows multi-segmental hypointensities. DWIBS demonstrates three segmental hypointensity lesions on the left radial nerve fascicle.
Intraoperative Intraoperative

Intraoperative photographs shows three segmental hourglass-shaped lesions on the left radial nerve, correspondings to the DWIBS findings.


Pathological diagnosis is left radial nerve fascicle torsion.

Clinical impact of MR neurography

In this case ultrasound cannot demonstrate the exact position of the lesion. However, after an MR neurography, the lesion’s position and shape can be demonstrated which can help determine the type of lesion and can be of support for surgery.

Related reading:


Results from case studies are not predictive of results in other cases. Results in other cases may vary.

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Feb 12, 2015

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Case Study
Achieva 3.0T TX
DWIBS, Hand, MR neurography, Neuro, radial

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