Of the two studies that did observe Lewy body pathology in CTE cases, one study reported that 15/68 CTE cases examined had alpha-synuclein Lewy bodies, 13 of which had a comorbid diagnosis of AD, Lewy body disease, and/or Parkinson’s disease and all were significantly older than those without Lewy bodies. The gene discussed is SNCA; the disease is Alzheimer disease.