RT Journal Article T1 Clinical Utility Gene Card for: autosomal dominant myotonia congenita (Thomsen Disease). A1 Coote, David J A1 Davis, Mark R A1 Cabrera, Macarena A1 Needham, Merrilee A1 Laing, Nigel G A1 Nowak, Kristen J K1 Genetic testing K1 Neuromuscular disease AB Myotonia congenita is a genetic disease of skeletal muscle membrane hyperexcitability caused by variants in CLCN1, leading to reduced conductance of the main skeletal muscle chloride channel (ClC-1) [1]. This disorder can be inherited in an autosomal dominant ( Thomsen disease ; sometimes associated with reduced penetrance ) or recessive ( Becker disease ; OMIM 255700) fashion. Thomsen disease is rare and exhibits a high degree of genetic heterogeneity. PB Nature Publishing Group YR 2018 FD 2018-07 LK http://hdl.handle.net/10668/12394 UL http://hdl.handle.net/10668/12394 LA en NO Coote DJ, Davis MR, Cabrera M, Needham M, Laing NG, Nowak KJ. Clinical Utility Gene Card for: autosomal dominant myotonia congenita (Thomsen Disease). Eur J Hum Genet. 2018 Jul;26(7):1072-1077. DS RISalud RD Apr 5, 2025