Hydronephrosis. when is obstruction not obstruction?
King, L.R.
Urologic Clinics of North America 22(1): 31-42
1995
ISSN/ISBN: 0094-0143 PMID: 7855958 Document Number: 452934
It once was relatively simple for most urologists to diagnose ureteropelvic junction obstruction, and it was previously axiomatic that obstruction required repair to preserve and maximize renal function. Modern imaging studies have cast doubt on previously held concepts, leaving the clinician with an enigma. Prolonged follow-up of some non-operated cases has demonstrated late deterioration of function, further compounding the diagnostic uncertainty.