What is stricture disease associated with flank pain?

Updated: Dec 11, 2019
  • Author: Bradley C Gill, MD, MS; Chief Editor: Bradley Fields Schwartz, DO, FACS  more...
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Broadly defined, a stricture is a concentric narrowing within the wall of a tubular structure. Within the urinary tract, this  can occur at any level from the intrarenal collecting system, through the ureter, to the urethra. If a stricture is severe enough, urinary drainage can be impaired and the urinary system proximal to this level can become dilated. Stricture may result from congenital problems (eg, infundibular stenosis, ureteropelvic junction obstruction, posterior urethral valves) or be iatrogenically induced (eg, repeated endoscopic procedures, laser damage, inadvertent electrocautery ).

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