Deviation of the prostatic urethra in pelvic masses.

A cystourethrogram in the anteroposterior view can be useful for the diagnosis of a mass in the true pelvis in males, particularly when rectal examination is not possible. The technique is simple and rapid and has the same morbidity as simple urethral catheterization. This maneuver should be used whenever a pelvic mass is suspected in a male and physical findings fail to confirm its presence.