Clinics of NeurologyCONTROVERSY exists as as to whether Parkinson ailment (PD) and dementia with Lewy bodies (DLB), which include diffuse Lewy system disease along with a Lewy entire body variant of Alzheimer ailment (Advertisement),1 depict 2 distinct nosologic entities or whether they exist along the spectrum of a single disorder, Lewy physique i