What was the debate George's doctors were having regarding his bladder cancer treatment?

Kelly used her pre-op time to harass George's doctors about his condition. George asked her to lay off on Schoenberg but Kelly was determined to learn as much as she could. The possibility existed that his bladder would have to be removed but Schoenberg was totally against doing so. His other physician, Dr. Ellis, feared recurrence and favored removing it. Mary was most concerned with George's quality of life and wearing two bags the rest of his life did not qualify as "quality."