[Characteristics of clinical manifestations of the developmental defects of the ureters in children].

Analysis of the clinical manifestations of the obstruction of the pelviureteral segment, of the vesicoureteral reflux, reflux and obstructive megaureter, ureterocele and ectopia of the ostium ureteris in 423 children has demonstrated that the clinical symptomatology of the abnormalities depends to a great measure on the degree of urodynamic disorders. The developmental abnormalities that provoke the obstruction of the initial part of the ureter manifest themselves primarily by the painful syndrome. Provided the urodynamics is disturbed in the inferior parts of the ureter, urination disorders become first and foremost.