S100B and subarachnoid hemorrhage: The statistical analysis revealed a significant correlation between S100β expression and diffuse perineuronal and perivascular edema (r = 0.34, p = 0.019), arteriolosclerosis (r = −0.80, p < 0.001), gliosis and mononuclear cell infiltration (r = −0.42, p = 0.001), lacunar infarction (r = −0.48, p < 0.001), subarachnoid hemorrhage (r = −0.65, p< 0.001), and intraparenchymal and perivascular hemorrhages (r = −0.34, p = 0.003).