Parkinson’s Disease: Clinical
Characteristics
• Disease of aging:
-Incidence:   Overall  20/100,000
       Age 70  120/100,000
• Clinical Features:  tremor, rigidity, slowness of
movement, postural instability
• Pathology:  substantia nigra pars compacta, locus
coeruleus, nucleus basalis of Meynert, olfactory
bulb