Fig. 1
From: Typing of hereditary renal amyloidosis presenting with isolated glomerular amyloid deposition
Kidney biopsy findings. The glomerular architecture was destroyed, and replaced with massive amorphous eosinophilic deposits (a, hematoxylin and eosin stain), which exhibited positive Congo red stain (b) and located in the mesangium and subendothelia of glomeruli (c, periodic acid-silver methenamine). EM demonstrated randomly arranged nonbranching fibrils in a diameter of 8–12 nm in glomerular subendothelial area(d). Magnification, × 200 in A-C; × 40,000 in D