A family with hereditary juvenile dystonia‐parkinsonism

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Abstract
We report a family with autosomal dominant type hereditary juvenile dystonia‐parkinsonism in which eight members in three generations exhibited parkinsonism, sleep benefit, marked efficacy of levodopa, wearing‐off phenomenon, and dopa‐induced choreic dyskinesia. However, one case showed mainly dystonic movement that worsened after administration of levodopa. The patients in this family showed neck dystonia, such as torticollis and retrocollis, in addition to foot dystonia and other dystonic movement, such as frequently lifting the thigh. From the family history and clinical findings, these patients are considered to have a specific form of hereditary dystonia‐parkinsonism.