[Erythrocyte morphology in urine determined by light microscopy in patients with bladder cancer].

A finding of 80% or more of dysmorphic erythrocytes is assumed to point to kidney glomeruli, and of 80% or more of isomorphic erythrocytes to lower urinary tract as the origin of bleeding. In urine samples without significant origin of bleeding, there were 20%-80% of mixed results with both dysmorphic and isomorphic erythrocytes. The aim of the study was to show the origin of erythrocytes in malignant urine samples.