More than 96% of patients with Parkinson's disease (PD) present with olfactory dysfunction, compared with an established olfactory loss of at least 25% in the normal population over 52 years of age.

Nonmotor symptoms are assuming an increasingly important place in the constellation of clinical traits that characterize Parkinson disease ... as the retina, the olfactory apparatus, the cardiac ...

Olfactory (smell ... visual-spatial dysfunction, and visual hallucinations. That said, a critical distinguishing feature is that Parkinson's disease dementia occurs at least one year—but ...

MSA is divided into MSA-C (cerebellar type) which has more symptoms of ataxia (incoordination) and MSA-P (parkinsonian type) which has more parkinsonian symptoms but is relatively unresponsive to the ...

Parkinson’s disease is a neurodegenerative disorder that often causes tremors, motor dysfunction, stiff limbs and gait and balance issues, according to the Parkinson’s Foundation. Scientists ...