动脉壁及其周围、肾小球和肾间质可见无定形的粉红色淀粉样沉积物。刚果红染色淀粉样物呈粉红色。淀粉样物质沉积使肾脏体积增大，但功能下降。
The amorphous pink depositis of amyloid may be found in and around arteries, in interstitium, or in glomeruli. A Congo red stain will demonstrate the pink material to be amyloid. Such collections of amyloid add to renal bulk, but diminish renal function.
