Charcot-Bouchard aneurysm /shärkō″bo͝oshär″/ [Jean M. Charcot, French neurologist, 1825–1893; Charles J. Bouchard, French physician, 1837–1886] , a small, round dilation of a small artery in the cerebral cortex or basal ganglia. Charcot-Bouchard aneurysms often occur in individuals with very high blood pressure.
