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Neurophysiology studies in a 50-year-old man with slowly progressive weakness of the left upper limb revealed conduction block in the ulnar nerve above the elbow. His weakness remained stable with regular subcutaneous immunoglobulin, but he noted gradual hemibody hair depigmentation. Examination also revealed unilateral left hand leukonychia (figure). MRI of the brain and cervical spine was normal.

Original publication

DOI

10.1212/01.wnl.0000435562.07857.fd

Type

Journal article

Journal

Neurology

Publication Date

12/11/2013

Volume

81

Pages

1800 - 1801

Keywords

Hair, Humans, Hypopigmentation, Male, Middle Aged, Nail Diseases, Polyneuropathies