[The significance of erythrocyte morphology for the differential diagnosis of hematuria].

Since 1984 we have investigated urine specimens of 129 patients by means of phase contrast microscopy. 51% of the children have an isomorphic, 43% a dysmorphic and 6% a mixed erythrocyturia. We have found a good correlation between dysmorphic erythrocyturia and glomerular diseases and between isomorphic erythrocyturia and nonglomerular changes. In 4.6% there were a discrepancy between the urinary findings and the diagnoses. Phase contrast microscopy is an advantage for diagnostics of hematuria provided that it will be done repeatedly.