MAPT and red-green color blindness: The most specific neuropathological finding in CBD is astrocytic plaques.21 Swollen achromatic neurons mayalso be found, but those are not specific to CBD, being observable in otherconditions.21 Othercharacteristic findings include: tau-positive threads, which are observed in theneocortex, subcortical white matter and basal ganglia, and oligodendroglialinclusions called coiled bodies.34These inclusions are exclusively composed of 4R Tau.40