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Updated: Aug 13, 2026

Nerve Ultrasound Protocol to Detect Dysimmune Neuropathies
Published on: October 7, 2021
Lumbar plexus involvement with chronic inflammatory demyelinating polyneuropathy (CIDP): a variant case of the
D Hernalsteen1, G Cosnard, A Peeters
1Department of Radiology and Medical Imaging, Université catholique de Louvain, Cliniques universitaires Saint-Luc, Bruxelles, Belgium.
Abstract:
We report the magnetic resonance (MR) findings in a male patient presenting with a variant chronic idiopathic demyelinating polyneuropathy (CIDP). He developed a slowly progressive weakness of the right leg associated with sensory dysfunction. Electrophysiologic studies were pathognomonic for a lower limb demyelinating polyneuropathy based on the slowed conduction velocities of the nerves. MRI showed the two major features of the disease: marked asymmetric enlargement of the lumbar plexus nerve roots and strong hypersignal of the enlarged roots on STIR images.
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