PLA2R1 and membranous glomerulonephritis: Among patients diagnosed with PLA2R related membranous nephropathy, we also observed the discrepancy of the positivity between serum anti-PLA2R and glomerular PLA2R, with 23/97 cases presented positive serum anti-PLA2R and negative PLA2R staining in renal tissue, while 14/97 cases presented the opposite results.