Amnesia due to fornix infarction

Background and Purpose-The fornix connects various structures involved in m emory. We report a patient with anterograde amnesia after an acute ischemic infarct in the anterior fornix. Case Description-A 71-year-old female with acute-onset amnesia had neuroima ging studies showing ischemic infarction of both columns and the body of th e fornix and the genu of the corpus callosum. Neuropsychological evaluation revealed anterograde amnesia without evidence of callosal disconnection. T he patient showed marked improvement in her memory function on the follow-u p visit. Conclusions-Amnesia in this case is likely due to infarction of the anterio r fornix structures.