There are four main Parkinson-plus syndromes, which present as Parkinsonism (triad of resting tremor, hypertonia, and bradykinesia) with additional clinical features described below.
Parkinisonism and vertical gaze palsy.
Parkinisonism and early autonomic clinical features such as: postural hypotension, incontinence, and impotence.
Parkinisonism and involves spontaneous activity by an affected limb, or akinetic rigidity of that limb.
Parkinisonism and fluctuations in cognitive impairment and visual hallucinations, often before Parkinsonian features occur.