An autopsy case of amyloid β-related angiitis with cognitive impairment, multiple infarcts and subcortical hemorrhage

A 76-year-old female presented with cognitive impairment and multiple brain infarcts and died of massive subcortical cerebral hemorrhage. A premortem clinical diagnosis was not possible. She did not show apparent microbleeds on brain images during her lifetime. An autopsy revealed vasculitis at various stages with amyloid β deposition and granulomatous reaction in cortical and leptomeningeal arteries, although almost vasculitic processes were in...