McKinney JL, De Los Reyes EC, Lo WD, Flanigan KM. Recurrent central nervous system white matter changes in charcot-Marie-tooth type X disease.
Muscle Nerve 2014;
49:451-4. [PMID:
24170412 DOI:
10.1002/mus.24108]
[Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/17/2013] [Indexed: 11/10/2022]
Abstract
INTRODUCTION
X-linked Charcot-Marie-Tooth (CMT1X) disease is caused by mutations in the GJB1 gene. We describe a young man who presented with recurrent central nervous symptoms and transient white matter changes in the setting of a novel mutation in the GJB1 gene.
METHODS
Evaluation included clinical examination, neuroimaging, electrophysiological, and molecular genetic studies.
RESULTS
Clinical examination on 2 admissions 5 years apart demonstrated hemiparesis with findings of underlying peripheral neuropathy. Electrophysiologic studies revealed a sensorimotor polyneuropathy. MRI studies from both admissions revealed white matter changes, with improvement on an intervening study. Mutation analysis showed a novel mutation (c.98T>A; p.Ile33Asn) in the GJB1 gene.
CONCLUSIONS
Mutations in GJB1 can result in recurrent central nervous system symptoms with transient white matter signal changes on MRI. In patients presenting with hemiparesis, the presence of signs of a peripheral neuropathy may facilitate identification of CMT1X, and is likely to affect clinical management.
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