REPORT FROM THE AMERICAN ACADEMY OF NEUROLOGY (AAN) 63RD ANNUAL MEETING, HONOLULU, HAWAII, APRIL 9-16, 2011 – The possible link between Alzheimer’s disease and a history of traumatic brain injury is unclear (for a review see Jellinger KA. Curr Opin Neurol 2004; 17: 719-723). This issue was examined in a retrospective analysis of pathology data for the period 1997 to 2010 (Mehta et al. AAN 2011; abstract P07.244). Traumatic brain injury was defined as a closed head injury with loss of consciousness. The study sample included 108 subjects with AD, of whom 11 had a history of brain injury.