A kidney biopsy is not routinely performed as soon as the nephrotic syndrome is found in 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.<unk><unk>  is required for the diagnosis of minimal<unk><unk> .  It shows effacement (fusion) of podocytes, which are visceral epithelial cells, with slit-pore membrane obliteration between podocyte foot processes.  However, podocyte effacement is not specific and should not be considered pathognomonic of the<unk> .
Minimal change disease electron microscopy
Minimal change disease immunohistology
Thin basement membrane disease biopsy
Diffuse large B cell lymphoma biopsy
Minimal change disease physical examination
Non-Hodgkin lymphoma biopsy
Angioimmunoblastic T-cell lymphoma biopsy
Lymphomatoid granulomatosis MRI