Figure 1From: Plasmapheresis leading to remission of refractory nephrotic syndrome due to fibrillary glomerulonephritis: a case report Electron microscopy image of a capillary cross-section shows a portion of glomerular basement membrane with membranous deposits of 15- to 20-nm fibrils (arrows). Fibril density is highest in the vicinity of the capillary lumen and becomes lower toward the podocyte side of the glomerular basement membrane. Magnification: 12,000×.Back to article page