Which light microscopy findings are characteristic of diabetic nephropathy?

Updated: Oct 09, 2019
  • Author: Vecihi Batuman, MD, FASN; Chief Editor: Romesh Khardori, MD, PhD, FACP  more...
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Answer

Light microscopy findings show an increase in the solid spaces of the tuft, most frequently observed as coarse branching of solid (positive periodic-acid Schiff reaction) material (diffuse diabetic glomerulopathy). Large acellular accumulations also may be observed within these areas. These are circular on section and are known as the Kimmelstiel-Wilson lesions/nodules.


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