Pathological accumulations of β‐amyloid, tau, and gliosis were all positively correlated in LBSD (β‐amyloid and tau: ρ = 0.51, P = 0.00017; β‐amyloid and gliosis: ρ = 0.32, P = 0.025; tau and gliosis: ρ = 0.46, P = 0.001). The gene discussed is MAPT; the disease is Gliosis.