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Accuracy of clinical diagnosis of Alzheimer disease and clinical features of patients with non-Alzheimer disease neuropathology



Accuracy of clinical diagnosis of Alzheimer disease and clinical features of patients with non-Alzheimer disease neuropathology



Alzheimer Disease and Associated Disorders 10(4): 180-188



Neuropathological examination confirmed the clinical diagnosis of possible or probable Alzheimer disease (AD) in 90 of the first 100 patients who came to autopsy at the Johns Hopkins Alzheimer's Disease Research Center. In 10 cases, postmortem brain examination did not confirm AD but revealed variable patterns of neuronal loss in neocortex and limbic structures without amyloid deposits. The most common pattern of degeneration was relatively isolated hippocampal sclerosis (HS). Despite the finding that the 10 patients with non-AD neuropathology were ill for less time and were less cognitively impaired at study entry than those patients with definite AD, they had shorter survival times and showed equal behavioral disturbance at study entry (on a standardized measure). The clinical case reports included here suggest early and progressive prominent behavioral disturbance and other indexes of rapid illness progression in three of the four HS patients and two other non-AD patients. We conclude that the criteria of the National Institute of Neurological Disorders and Stroke/Alzheimer Disease and Related Disorders Association for possible or probable AD are highly accurate and that misdiagnosis is most likely to occur early in the course of illness and in patients with prominent behavioral disturbance or other atypical features.

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Accession: 008095367

Download citation: RISBibTeXText

PMID: 8939276

DOI: 10.1097/00002093-199601040-00002


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