MPO and interstitial nephritis: Pathophysiological diagnoses of the other patients included hypertensive nephrosclerosis (n = 4), myeloperoxidase-antineutrophil cytoplasmic antibody-associated glomerulonephritis (n = 3), focal segmental glomerular sclerosis (n = 2), diffuse mesangial proliferative glomerulonephritis (n = 2), diffuse endocapillary proliferative glomerulonephritis (n = 1), proteinase 3-myeloperoxidase-antineutrophil cytoplasmic antibody-associated glomerulonephritis (n = 1), membranoproliferative glomerulonephritis (n = 1) and tubulointerstitial nephritis (n = 1).