Alzheimer's stain

例句：

1. 1. The patient had a senile plaque on the right side of his brain.
   患者右侧大脑上有老年斑。
2. 2.Amyloid plaque is a common feature of Alzheimer's disease.
   淀粉样斑块是阿尔茨海默病的常见特征。
3. 3. The pathologist found a few amyloid plaques in the brain tissue.
   病理学家在脑组织中发现了几个淀粉样斑块。