Wow... I'm so very sorry to hear this. Bladder cancer! That's quite shocking, as in recent years the medical technologies to address it have improved dramatically. My mother is a bladder cancer survivor. Thankfully in her case, it was caught early... and while she had her bladder removed (much to her dismay), it hadn't spread very far. She had a hysterectomy as a precaution. Finally got used to the ostomy bag. Lifestyle is very good, very mobile. No sign of recurrence. I guess in David's case, he must've had the misfortune of it being detected very late. 
