Heredodegenerative Dystonia
This etiologic classification refers to disorders in which neurodegenerative changes may lead to dystonia as a primary feature and other neurologic symptoms are typically apparent, particularly parkinsonism. However, in some patients with these disorders, dystonia may not develop and other neurologic features may be primary findings. The term "heredodegenerative" is used since many of these disorders are hereditary; however, it is important to note that some are of unknown cause. The heredodegenerative dystonias include numerous disorders, such as certain X-linked recessive, autosomal dominant, autosomal recessive, and/or parkinsonism syndromes. Such disorders include the following:
- X-linked dystonia-parkinsonism (Lubag)
- Huntington's disease
- Wilson's disease
- Neuroacanthocytosis
- Rett syndrome
- Parkinson's disease
- Juvenile parkinsonism
- Other heredodegenerative dystonias
