1 Department of Radiology, Children's Hospital of Pittsburgh, University of Pittsburgh
One hundred and fifteen children with vesicoureteral reflux have been followed for 5 or more years. In 86 children the findings on excretory urography have remained normal. In one girl the findings became abnormal. In 11 with abnormal findings on excretory urography, the abnormalities were present at the time of the first examination, and they did not change. In 17 children the findings on follow-up excretory urography were inconclusive because the renal margins or the calices were not satisfactorily defined, or slight dilatation of a calix due to normal variation in caliber could not be differentiated from pathological dilatation.
The clinical course of these children has been different from that of a separate group of 16 children with the microscopic diagnosis of chronic pyelonephritis.
Submitted on January 6, 1971