Alzheimer’s disease is the most common cause of dementia and accounts for ~55% of all cases of dementia. One to two percent of the population at age 65 will have dementia and the prevalence increases by 15-25% each decade. The neuro-pathological changes in Alzheimer’s disease ...

The MRI images shown here (Figures 1 to 5) are from a patient with cerebral amyloid angiopathy (CAA). CAA is caused by the accumulation of aggregated amyloid-β (Aβ) plaques in the walls of small to medium-sized arteries and penetrating arterioles. Such aggregates are due to an ...