SNCA and Parkinson disease: Intracellular aggregates of α-synuclein are common to all α-synucleinopathies and are called LBs in PD and in Dementia with Lewy Bodies (DLB), glial cytoplasmic inclusions in multiple system atrophy (MSA), and axonal spheroids in several less well-characterized neuroaxonal dystrophies (Kim et al., 2014).