Leukocyturia is associated with postinfectious glomerulonephritis (GN), interstitial nephritis,
and renal allograft rejection. In addition, prominent infiltration of T cells and macrophages is
commonly observed in the renal tissues of patients with GN, accompanied by cellular
crescent formation and/or interstitial cell infiltration. Because these infiltrating T cells were
thought to participate in the development of the diseases and to appear in the urinary space
while functioning as effector cells in the renal inflammatory lesion, the study focused on the …