Clot retention and spontaneous rupture with secondary pneumatosis of bladder wall following routine cystoscopy.

In this article we report an unusual case of spontaneous rupture of bladder wall following office-cystoscopy. It took place in a patient who suffered from low-stage highgrade carcinoma of bladder with the different aggressive behavior. Finally, he underwent radical cystectomy, which showed micropapillary carcinoma and pneumatosis within the bladder wall. The cause of the latter finding is rather puzzling and has been never reported previously.