Clinics of NeurologyClinics of NeurologyCONTROVERSY exists as as to whether Parkinson ailment (PD) and dementia with Lewy bodies (DLB), including diffuse Lewy entire body ailment and also a Lewy body variant of Alzheimer disease (Advert),1 signify two distinct nosologic entities or whether or not they exist along the spectrum of only one dysfunctio