Study: Many Alzheimer's Diagnoses Incorrect

A new study, scheduled to be presented at the American Academy of Neurology annual meeting in April, found that Alzheimer's disease might not be as prevalent as currently believed.

Researchers reviewed the post-mortem brains of 211 study subjects who were diagnosed with Alzheimer's while alive. Only roughly half of the subjects had brain conditions that are commonly associated with Alzheimer's disease, such as amyloid plaques and neurofibrillary tangles. Instead, they often had other brain abnormalities, including hippocampal sclerosis and generalized brain atrophy.

The study results have not yet undergone peer review. To learn more, click here.