增生性肾小球肾炎：上皮与基膜之间驼峰状电子致密沉积物

电镜下，链球菌感染后肾小球肾炎的电子致密的免疫沉积物主要位于脏层上皮下，图示基底膜右侧一个大的脏层上皮下驼峰状沉积物。毛细血管腔内充满了中性粒细胞，它们的核呈分叶状，还可见细胞浆内的颗粒。
By electron microscopy, the electron dense immune deposits of post-streptococcal glomerulonephritis are predominantly subepithelial, as seen here with a large subepithelial "hump" at the right of the basement membrane (BM). The capillary lumen is filled with a PMN whose nuclear lobes and cytoplasmic granules are visible.