Antegrade pyelography versus unenhanced multidetector CT in the assessment of urinary-tract stones after percutaneous nephrostomy insertion: a prospective blinded study.

Background And Purpose: In patients with a percutaneous nephrostomy tube (PCN) inserted for symptomatic stone disease, antegrade pyelography is an accepted modality to assess the collecting system and residual stone status prior to PCN removal. Recently, unenhanced multidetector CT (UMDCT) has shown its superiority for the assessment of urinary-tract stones. Comparison of UMDCT with antegrade pyelography has never been done; hence, our aim was to compare the two methods for the assessment of urinary stones in patients with a PCN.

Diagnosis and treatment of urinary tract complications in Crohn's disease: an experience over 15 years.

Background: Urinary tract complications in Crohn's disease are common but treatable, and often present diagnostic and therapeutic dilemmas.

Purpose: To determine the incidence of urinary tract complications in patients with Crohn's disease in Israel and to report an experience over 15 years of patients with Crohn's disease, with the aim of illustrating the diverse patterns of presentation, and thereby broadening the approach to diagnosis and treatment.

Methodology: Clinical and radiological findings of 312 patients with Crohn's disease were reviewed.