A kidney biopsy is not routinely performed as soon as nephrotic syndrome is found during lab work-up. According to the National Kidney Foundation (NKF) Kidney<unk>  – Improve Global Outcomes (KDIGO) guidelines in 2012, an initial attempt using corticosteroids should be performed before a renal biopsy is performed.  A renal biopsy of<unk>  change<unk>  shows no or<unk>  abnormalities on light microscopy. Lipid-laden cells may be seen in proximal tubular epithelium.  Renal biopsy is often unremarkable under immunofluorescence, with the exception of few cases that stain positively for IgM antibodies and C3.The hallmark of<unk>  change<unk>  is absence of visible alterations on light microscopy and absence of effacement of foot processes by electron microscopy.
Minimal change disease immunohistology
Minimal change disease electron microscopy
Lymphomatoid granulomatosis classification
Minimal change disease physical examination
Granulomatosis with polyangiitis physical examination
Lymphomatoid granulomatosis MRI
Minimal change disease classification
Microscopic polyangiitis physical examination