Collagenoma and voiding dysfunction as complications of periurethral bulking.

Peri-urethral bulking agents are used as a management option for selected patients with stress urinary incontinence (SUI). We present a case of urinary retention and a large firm para-urethral vaginal mass as a complication of peri-urethral collagen injections 3 years before presentation. The patient was managed successfully with complete surgical resection of the mass. Subsequent recurrent SUI was managed using a rectus fascial sling.