" /> Rett syndrome - CISMeF





Preferred Label : Rett syndrome;

Symbol : RTT;

CISMeF acronym : RTS; RTT;

Type : Phenotype, molecular basis known;

Alternative titles and symbols : Autism, dementia, ataxia, and loss of purposeful hand use; RTS;

Included titles and symbols : Rett syndrome, zappella variant; Rett syndrome, preserved speech variant; Rett syndrome, atypical;

Description : Rett syndrome is a neurodevelopmental disorder that occurs almost exclusively in females. It is characterized by arrested development between 6 and 18 months of age, regression of acquired skills, loss of speech, stereotypical movements (classically of the hands), microcephaly, seizures, and mental retardation. Rarely, classically affected males with somatic mosaicism or an extra X chromosome have been described (Moog et al., 2003).;

Inheritance : X-linked dominant;

Molecular basis : Caused by mutation in the methyl-CpG-binding protein-2 gene (MECP2, 300005.0001);

Prefixed ID : #312750;

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27/07/2025


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