Periurethral pseudocyst following cystoscopic collagen injection.

Periurethral injection of collagen is widely used for treatment of stress urinary incontinence. It has been shown to be an effective, low risk, minimally invasive surgical procedure to treat carefully selected patients with intrinsic sphincter deficiency. Adverse reactions and complications from this technique are rare. We report an unusual complication following cystoscopic injection of collagen.