Cerebral infarction is an uncommon and unusual cause of acute amnesia. The fornix is a white matter tract bundle that plays an important function in memory. We present the case of a 60-year-old male presenting with altered mental status and acute onset amnesia with CT and MR imaging demonstrating an acute left fornix infarct. https://www.roneverhart.com/HP-15-fc0093dx-15-6-FHD-Laptop-AMD-Ryzen-5-7520U-2-8-GHz-AMD-Radeon-16GB-LPDDR5-256GB-SSD-Windows-11-Home-S-8F1A6UA/