October 29, 2018
Diagnose This (October 29, 2018)
What class of disease does this patient have and how did they present clinically?
The electron photomicrograph shows diffuse epithelial foot process effacement with microvillus transformation in the absence of definitive immune complex deposits and suggests a podocytopathy. While there are a few different diseases that fall under the umbrella of podocytopathy, the most common are primary focal segmental glomerulosclerosis and minimal change disease. In this case, the light microscopy shows mild acute tubular injury but no significant glomerular alterations and the immunofluorescence showed no deposits making this a minimal change disease. As expected, this patient presented with an abrupt onset of nephrotic syndrome and 8 g/g proteinuria.