Dr. Guyton did numerous cysoscopes and tests on my father over several years, but totally missed bladder cancer on him. He blamed all his issues on his prostate. After my father ended up in the hospital with kidney and heart failure due to bladder obstruction from the cancer, Dr. Guyton still did not believe my father had bladder issues. I had to have him transferred to Charlotte, NC for proper medical care where the urologist there diagnosed an aggressive form of bladder cancer that had already spread all over his abdomen. He died 6 months later.