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Descending urethral ultrasound of the native and reconstructed urethra in patients with hypospadias

Departments of ¹ Radiology and ² Urology, University of Cambridge and Addenbrooke's Hospital NHS Trust, Hills Road, Cambridge CB2 2QQ, UK

Correspondence: Dr AP Toms, Department of Radiology, Box 219, Addenbrooke's Hospital, Hills Road, Cambridge CB2 2QQ, UK

A retrospective study, over a 7 year period, examining the use of descending urethral ultrasound in corrected and uncorrected hypospadias was performed. 15 examinations were performed on 14 patients; 12 patients had undergone previous surgery for hypospadias, ranging from urethral reconstruction to stricture dilatation. Eight strictures, four irregular urethras, two normal post-operative urethras and one urethral valve were demonstrated. All the clinically significant abnormalities (those which impaired the flow of urine) demonstrated by ultrasound were confirmed with subsequent urethroscopy or contrast urethrography. This small series illustrates the application of descending urethral ultrasound in patients with hypospadias who are difficult to examine with more conventional radiographic techniques.