title: Lumbar plexus involvement with chronic inflammatory demyelinating polyneuropathy (CIDP): a variant case of the generic disorder.
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.
authors.affiliation: Department of Radiology and Medical Imaging, Université catholique de Louvain, Cliniques universitaires Saint-Luc, Bruxelles, Belgium.
authors.forename: D
authors.initials: D
authors.lastname: Hernalsteen
authors.forename: G
authors.initials: G
authors.lastname: Cosnard
authors.forename: A
authors.initials: A
authors.lastname: Peeters
authors.forename: Th
authors.initials: T
authors.lastname: Duprez
mesh_terms: D006801:Humans; D007866:Leg / Q000294:innervation; D008160:Lumbosacral Plexus / Q000473:pathology*; D008279:Magnetic Resonance Imaging; D008297:Male; D009431:Neural Conduction; D020277:Polyradiculoneuropathy, Chronic Inflammatory Demyelinating / Q000175:diagnosis* / Q000503:physiopathology