A charcot-marie-tooth type 1B kindred associated with hemifacial spasm and trigeminal neuralgia.

ABSTRACT: INTRODUCTION:Charcot-Marie-Tooth (CMT) phenotypes can be distinguished by electrophysiology and genetic analysis but few can be identified by their clinical characteristics. Distinctive phenotypes are useful in identifying affected individuals and providing additional clues about the mechanism of the neuropathy. Cranial neuropathies are uncommon features of CMT, and few reports of familial hemifacial spasm (HFS) and trigeminal neuralgia (TN) have been published. METHODS:Sixty-three members of a large CMT 1B kindred were assessed for signs of peripheral neuropathy and cranial neuropathies then tested for the G163R mutation in the myelin protein zero (MPZ) gene. RESULTS:Of 27 individuals with the G163R mutation in MPZ, 10 had HFS or TN. Co-existing HFS and TN were found in 3 of these and 4 h

SUBMITTER: Caress JB 

PROVIDER: S-EPMC6579632 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature