Lewy Body Dementia

**Semantic type:** Mental or Behavioral Dysfunction

**Definition:** A progressive form of dementia characterized by the presence of protein deposits called Lewy bodies in the midbrain and cerebral cortex, and loss of cholinergic and dopaminergic neurons. The signs and symptoms overlap with Alzheimer and Parkinson disease.

**Synonyms:** - Dementia with Lewy bodies - Lewy Body Disease