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.
There are a number of other neurodegenerative diseases associated with parkinsonism and frequently labelled as atypical [parkinsonism or parkinsonian plus syndromes, including multiple system atrophy, progressive supranuclear palsy, corticobasal degeneration and dementia with Lewy bodies (DLB).