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The following summary is from Orphanet, a European reference portal for information on rare diseases and orphan drugs.
Orpha Number: 98805
DYT4 type primary dystonia is characterized by predominantly laryngeal dystonia (manifesting as whispering dysphonia) and cervical dystonia (manifesting as torticollis).
So far, the disease has been reported in one large Australian family.
The age of onset varies from 13 to 37 years. Some patients develop generalized dystonia and psychiatric symptoms.
The locus for DYT4 remains unknown.
The disease is transmitted in an autosomal dominant manner.
Visit the Orphanet disease page for more resources.
Source: GARD Last updated on 05-01-20
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