Hi ive got endometriosis thats grown through the bladder wall and its in a position that is grown over the hole that drains from the kidney. Apparently its quiet rare. Is it as rare as they say?They would have to do partial cystectomy and make another hole and put a stent in.has any one ever had this surgery? And was it a success? And how painfull was it. Also I had a hysterectomy 6 years ago so endometriosis definitely comes back.