[Integral urologic echography: retrograde sonourethrography].

Herein we describe a new technique for urethral exploration which replaces conventional radiological urethrography to a large extent. Retrograde sonourethrography is capable of providing data different from those of radiology, eliminates most of the inconveniences of the radiologic techniques and provides images of the entire trajectory of the urethra. Because this procedure can be repeated as often as necessary, it is the diagnostic procedure of choice in urethral stricture, a persistent and recurrent pathological condition. The results of a study conducted in 30 patients with different urethral pathologies are presented.