SNCA and Lewy body dementia: Pathological investigation of the primary visual cortex in relation to RCVH, showed no evidence of α-synuclein deposition as Lewy bodies or Lewy neurites within primary visual cortex in any DLB case, with some evidence of α-synuclein deposition in BA18 as Lewy neurites in DLB cases, and increased deposition as Lewy neurites and occasional Lewy bodies in the lateral occipital cortex (see Fig. 1).