[Histopathologic changes in the kidneys in patients with asymtomatic pathologic findings in urine]

The authors had analyzed histopathologic changes in the kidneys of patients with asymptomatic abnormalities of urine analyzing if they were correlated with the type of pathologic finding in urine. Retrospective study comprised a total of 76 patients with asymptomatic urine abnormalities. In all three groups of patients, formed upon the type of pathologic finding in urine, were determined heterogeneous histopathologic changes, and different types of glomerulonephritis, respectively. The most frequent histopathologic finding was IgA nephropathy, observed in 16.7% patients with isolated proteinuria, in 50% patients with isolated microscopic hematuria and in 55.9% patients with associated urine abnormalities. In distinction from the other two groups of patients, in the group of patients with isolated proteinuria normal histologic finding was very frequently found (25% patients), and in group of patients with associated urine abnormalities were observed more severe histopathologic forms of glomerulonephritis, such as membranoproliferative glomerulonephritis. It was concluded that different types of glomerulonephritis most frequently caused asymptomatic abnormalities of urine in younger patients.