Distinguishing Dementia with Lewy Bodies From Parkinson's Disease Dementia and Alzheimer's Disease: A Geriatric Case Study

Case Presentation
Mr. P* is a 71-year-old widowed male resident of an assisted living facility who was recently diagnosed with Parkinson’s disease (PD), depression, and generalized anxiety. Mr. P had no prior history of mental illness. He acknowledged some regular alcohol use as a young man, consisting of drinking three to four alcoholic beverages per day over many years, but denied any alcohol-related blackouts, seizures, or treatment. Recent symptoms of anxiety and depression were attributed to a prolonged grief reaction from the loss of his wife just two years prior to admission....