This patient (IMAGE) University of Bonn Caption has hippocampal sclerosis that is usually easily operable. However, image C also shows changes consistent with incipient dementia, which can result in cognitive decline after surgery. Credit Image: Department of Epileptology/University Hospital Bonn Usage Restrictions This image may be used together with the press release. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.