Does multi-infarct dementia present in the same manner with a CT scan study as does Alzheimer disease? Clinical depression in an elderly patient is often mistaken for Alzheimer disease. Is there any...

Does multi-infarct dementia present in the same manner with a CT scan study as does Alzheimer disease?

Clinical depression in an elderly patient is often mistaken for Alzheimer disease. Is there any way to distinguish depression from Alzheimer disease in the geriatric population?