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膜性肾病分哪几期?

2019-10-23 阅读量:2025次
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膜性肾病是一个病理形态学诊断名词,是导致成人肾病综合征的一个常见病因,其特征性的病理学改变是肾小球毛细血管袢上皮侧可见大量免疫复合物沉积。那么,膜性肾病一共几期?

Ⅰ期:光镜下肾小球毛细血管正常,电镜下肾小球基底膜和上皮细胞间的足突间隙区域存在散在的或规则分布的较小的免疫复合物样的电子致密物质沉积。

Ⅱ期:光镜下肾小球毛细血管不均匀增厚形成“钉突”。电镜下发现上皮细胞下存在电子致密物沉积。

Ⅲ期:光镜下新形成的基底膜样物质包绕沉积物,形成网状、链状表现。电镜下电子致密物沉积在基底膜内或上皮下。

Ⅳ期:光镜下基底膜明显增厚。电镜下沉积物的电子密度丢失,在不规则增厚的基底膜中出现不规则的电子透亮区。

膜性肾病通常分为4期,希望这些知识的大家有所帮助。

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2019-10-23

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