Lewy body dementia (LBD, or Lewy body disorder) is an umbrella term that encompasses two similar dementias, both of which are characterized by abnormal deposits of the protein alpha-synuclein in the brain:
dementia with Lewy bodies (DLB), and
Parkinson's disease dementia (PDD).The two conditions have similar features, may have similar causes, and can be viewed as part of a spectrum. As of 2014, they were more often misdiagnosed than any other common dementia.
The synucleinopathies (dementia with ...
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