Intraoperative photo of the bladder in a cat with a large transitional cell carcinoma involving the cranioventral aspect of the bladder. Intraoperative photo of the bladder in a cat with a large transitional cell carcinoma involving the cranioventral aspect of the bladder. Extensive bladder resection (approximatively 75%) was performed preserving the trigone. An indwelling urethral catheter was used postoperatively to minimize distention of the bladder during healing.