At the present time,the definitive diagnosis of Alzheimer's disease can be made:

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The only confirmatory method of diagnosing Alzheimer's disease is to perform a brain biopsy or autopsy.Microscopic examination of neural tissue shows neurofibrillary tangles and senile plaques.While mental status changes are seen in Alzheimer's disease,clinical observation is not a definitive diagnosis of the disease,because mental status changes are seen in other conditions as well.The loss of ability to read,write,calculate,and communicate intelligently can be attributed to other conditions.Alzheimer's disease also may occur in persons younger than age 65.A PET scan is not used to diagnose Alzheimer's disease.

At the Present Time,the Definitive Diagnosis of Alzheimer's Disease Can