Obstructive Uropathy

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Abstract
In recent years there has been a renewed interest in the disease pyelonephritis. The role of the indwelling catheter, the cystoscope, and retrograde pyelography in the production of bacteriuria and pyelonephritis has been well emphasized. As a consequence, the fear of initiating active renal infection has led to new methods of obtaining and interpreting voided urine specimens in order to avoid catheterization for diagnostic purposes. However, along with this fear has developed a tendency to limit the use of tools which for many years have aided the physician in making the diagnosis of obstructive uropathy, a disease often equally as serious in consequence to the patient as pyelonephritis itself. The following three cases, seen recently in consultation by the urology service, emphasize the importance of considering obstruction in all cases of urinary infection and azotemia and using the diagnostic tools available when indicated as early as possible. Report of Cases

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