免疫荧光显示，肾小球抗纤维蛋白原抗体阳性。快速进展性肾小球肾炎时，肾小球损伤严重，以致纤维蛋白原都漏入了Bowman囊，导致上皮细胞的增生及新月体形成。
This immunofluorescence micrograph of a glomerulus demonstrates positivity with antibody to fibrinogen. With a rapidly progressive GN, the glomerular damage is so severe that fibrinogen leaks into Bowman's space, leading to proliferation of the epithelial cells and formation of a crescent.
