Fluctuating cognition
Recurrent visual hallucinations
Parkinsonian motor symptoms (cogwheel rigidity, shuffling gait, retropulsion)
REM-sleep disturbance
Neuroleptic sensitivity,  increased risk for neuroleptic malignant syndrome
Acute worsening of cognition or delirium, with antipsychotics, benzodiazepines, anticholinergics, surgical anesthetics
Acute worsening of cognition or delirium, with antipsychotics, benzodiazepines, anticholinergics, surgical anesthetics
Dementia with Lewy bodies
D = drug-induced
Normal pressure hydrocephalus
E = emotions 
Prion disease
M = metabolic and endocrine issues
Parkinson's disease
E = eyes and ears 