Related Experiment Video
Updated: May 5, 2026

Using Retinal Imaging to Study Dementia
Published on: November 6, 2017
[Differential diagnosis and common pathology between Alzheimer's disease and vascular dementia]
1Department of Neurology, Mie University Graduate School of Medicine.
Insights
Mixed dementia, involving Alzheimer's disease (AD) and cerebrovascular disease (CVD), shares overlapping pathologies. Understanding these commonalities is crucial for accurately differentiating between AD and vascular dementia.
Area of Science:
- Neurology and Neurodegenerative Diseases
- Cerebrovascular Health
Context:
- Dementia diagnosis often involves distinguishing between Alzheimer's disease (AD) and vascular dementia (VaD).
- Mixed dementia, characterized by the coexistence of AD and cerebrovascular disease (CVD), presents diagnostic challenges.
Purpose:
- To elucidate the pathological overlaps between Alzheimer's disease (AD) and cerebrovascular disease (CVD) in the context of dementia.
- To highlight the significance of these shared pathologies for the differential diagnosis of mixed dementia.
Summary:
- Mixed dementia results from the combined effects of Alzheimer's disease (AD) and cerebrovascular disease (CVD).
- Cerebral amyloid angiopathy, common in AD, can lead to microbleeds and microinfarctions, contributing to vascular dementia.
- Distinguishing between AD and VaD requires recognizing shared and overlapping pathological features.
Impact:
- Improved diagnostic accuracy for mixed dementia, leading to more targeted treatment strategies.
- Enhanced understanding of the complex interplay between neurodegenerative and vascular pathologies in cognitive decline.
- Potential for earlier and more precise identification of dementia subtypes.
Abstract:
Dementia due to both Alzheimer's disease (AD) and cerebrovascular disease (CVD) is designated as mixed dementia, or alternatively, AD with CVD. Cerebral amyloid angiopathy almost always accompanies AD, and causes lobar microbleeds, cortical subarachnoid hemorrhage and cortical microinfarctions. Dementia exclusively with cerebral amyloid angiopathy is a form of vascular dementia, while it is classified to AD when significant Alzheimer's pathology coexists. Between AD and vascular dementia there are common and overlapping pathologies, which is important for differential diagnosis of these diseases.
More Related Videos
04:29Author Spotlight: Modeling Vascular Contributions to Alzheimer's Disease in Transgenic Mice
Published on: May 17, 2024
12:50Lesion Explorer: A Video-guided, Standardized Protocol for Accurate and Reliable MRI-derived Volumetrics in Alzheimer's Disease and Normal Elderly
Published on: April 14, 2014
Related Concept Videos
Dementia l: Introduction
Alzheimer Disease ll: Pathophysiology
Alzheimer Disease l: Introduction
Alzheimer's Disease: Overview
The clinical diagnosis of AD hinges on the presence of memory and other cognitive impairments. Biomarkers, such as changes in Aβ...
Dementia
The progression of dementia is generally gradual....
Alzheimer's Disease: Treatment