图示：阿尔茨海默病患者的脑萎缩。
全脑体积缩小，部分区域萎缩明显。在右侧的额叶区萎缩尤其显著，可见脑回变窄，脑沟变宽。
This is cerebral atrophy in a patient with Alzheimer disease. The entire size of the brain is reduced, but some parts are more affected than others. The gyri are narrowed and the intervening sulci are widened, most pronounced toward the frontal lobe region shown here at the right.