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Medical Term:

myotonia congenita


an uncommon muscle disorder, with onset in infancy or early childhood, characterized by muscle hypertrophy, myotonia, and a nonprogressive course; autosomal dominant inheritance; caused by mutations in the skeletal muscle chloride channel gene (CLCN1) on chromosome 7q.

Synonym(s): Thomsen disease

© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.