الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
The study reaveled that:
• The sensitivity and the specificity of RUG in diagnosing anterior urethral strictures were 90%, and 100% respectively while those of MR Urethrogram were 100%, and 100% respectively. MR Urethrogram correlates better with the endoscopic findings.
• There is no statistically significant difference between MR Urethrogram and RUG ) in estimating the length of the strictures (p = 0.116).
• MR Urethrogram gave accurate data about the extent of spongiofibrosis in all patients (100%) and can easily distinguish cases with no or minimal spongiofibrosis from those with extensive spongiofibrosis. In contrast, Urethral palpation, RUG, and urethroscopy can not give any accurate data about the extent of spongiofibrosis (p = 0.0012*).
• Correlation between the extent of spongiofibrosis on MR Urethrogram and the etiology of urethral stricture revealed that inflammatory strictures were associated with extensive spongiofibrosis more than other strictures, idiopathic strictures were associated with minimal spongiofibrosis while traumatic strictures either iatrogenic or non iatrogenic were associated with minimal or extensive spongiofibrosis.
• There is a relation between the site of the stricture and the extent of spongiofibrosis; spongiofibrosis associated with penile strictures is usually extensive as the corpus spongiosum around the penile uethra is very thin while spongiofibrosis associated with bulbar strictures may be minimal or extensive as corpus spongiosum is more abundant around the bulbar urethra (p = 0.2).
• MR Urethrogram can give a clue about the possibility of recurrence after endoscopic management of anterior urethral strictures. This can be offered preoperatively to the patients in order to meet their expectations.
• The extent (density, depth, and length) of spongiofibrosis on MR Urethrogram after urethrotomy was increased in comparison with that before urethrotomy in some cases . This meets the literature in that endoscopic management exacerbate more scar formation.