Ataxia-telangiectasia variant

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Ataxia-telangiectasia variant

Synonyms: v-AT

A rare genetic persistent combined dystonia characterized by clinical signs similar to ataxia-telangiectasia but with a later (usually adulthood) onset and slower progression. Patients typically present extrapyramidal signs such as resting tremor choreathetosis and dystonia as the initial symptoms and later often develop mild cerebellar ataxia (with gait usually preserved). Telangiectasia and immunodeficiency may be absent but secondary features of ataxia-telangiectasia such as risk of malignancy dysarthria and peripheral neuropathy are frequently present.

Data from Orphanet are used to provide information on a disease's name, synonym(s), and overview.

Reference: Access aggregated data from Orphanet at Orphadata.

Orphadata: Free access data from Orphanet. © INSERM 1999. Available on http: // Data version September 2023.

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