[Intentional incision of the urinary bladder during complex gynecologic oncologic operations].

Extraperitoneal incision of the bladder is recommended for difficult gynecologic-oncologic operations. Cystostomy facilitates dissection of the bladder and helps to prevent injury of the distal ureter. Six cases are reported (2 cervical carcinomas, 2 ovarian carcinomas, 1 vaginal carcinoma, 1 sarcoma) to illustrate the indication and technique of cystostomy.