Definition of pleasantry. plural. pleasantries. 1 : a humorous act or remark : jest. 2 : an agreeable playfulness in conversation : banter. 3 : a polite social remark exchanged pleasantries.
Parkinson-plus syndromes are a group of neurological conditions that are similar to Parkinson's disease but have unique characteristics. These syndromes can be hard to diagnose because the symptoms mimic other conditions. Following are the four most common types of Parkinson-plus syndromes.
Parkinsonism is a clinical syndrome characterized by tremor, bradykinesia, rigidity, and postural instability. Parkinsonism shares symptoms found in Parkinson's disease, from which it is named; but parkinsonism is a symptom complex, and differs from Parkinson's disease which is a progressive neurodegenerative illness. The underlying causes of parkinsonism are numerous, and diagnosis can be complex.