Comparison of Cajal-like cells in pelvis and proximal ureter of kidney with and without hydronephrosis

Objectives: To evaluate effects of Cajal-like cells on human renal pelvis and proximal ureter on peristalsis. Materials and Methods: 63 patients submitted to nephrectomy due to atrophic non-functional kidney associated with hydroureteronephrosis were included as study group and 30 cases with nephrectomy due to other reasons were included as control group. Samples from renal pelvis and proximal ureters were obtained and sections of 5μ form paraffin blocks of these samples were prepared; layers of lamina propria and muscularis mucosa were examined by immune-histochemistry using CD117 in order...