SPENCER SUTTON / SCIENCE PHOTO LIBRARY SPENCER SUTTON / SCIENCE PHOTO LIBRARY
Composite image showing two frontal MRI scans of the brain. On the left is a healthy patient's brain; on the right is the brain of a patient with advanced Alzheimer's disease. In the patient with Alzheimer's, the MRI shows severe generalized atrophy of brain tissue with an accentuated loss of tissue involving the temporal lobes.
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