Abstract
The typical, insidious, slowly progressive dementia of old age (primary senile dementia) is not due to atherosclerosis. Most cases show Alzheimer-like degeneration of the brain at necropsy. There is no relationship between these parenchymal degenerative changes and arterial disease; hence the term "cerebral atherosclerosis" as applied to mental deterioration in the elderly is misleading and inaccurate. When vascular disease is responsible for dementia it is through the occurrence of multiple small or large cerebral infarcts (multi-infarct dementia). The investigation and precise diagnosis of all cases of dementia allow a more accurate prognosis and more rational management of the significant number of cases in which dementia is due to treatable conditions.
典型的，陰險的，慢慢地逐漸老年癡呆（老年癡呆症的主要）不是由於動脈粥樣硬化。
大多數病例顯示阿爾茨海默樣變性的腦在屍檢。
沒有任何實質關係，這些退行性改變，動脈疾病，因此所謂“腦動脈粥樣硬化”適用於中老年人心理的惡化是誤導和不準確的。
當血管疾病是負責癡呆的發生是通過多個小型或大型腦梗死（多發梗塞性癡呆）。
調查和準確的診斷讓所有案件癡呆預後更準確，更合理的管理相當數量的案件中，可治療老年癡呆症是由於條件。
