Symptoms typically present in the 3rd or 4th decade of life, but have been seen as early as the age of 14. It presents with torsion<unk> , particularly when presenting at a younger age, which then progresses to<unk>  with or without ongoing<unk> . Often the two symptoms coexist. The parkinsonian features of<unk>  include festinating gait, bradykinesia, blepharospasm, and postural instability. It often lacks a resting tremor, helping to differentiate it from Parkinson's disease.
X-linked dystonia parkinsonism
Huntington's disease-like syndrome
Madras motor neuron disease
Fragile X-associated tremor/ataxia syndrome
Parkinson-plus syndrome
Benign hereditary chorea
Stratton Parker syndrome
Babinski–Nageotte syndrome