Tobacco use is heavily related to kidney cancer and bladder cancer. In fact in the US, if you have bladder cancer it is from smoking. The same chemicals that cause cancer in the lungs get absorbed, circulate in the blood, filter to the kidneys, and sit in the bladder until you urinate.
Kidney cancer loves to go to the lungs. Most common site of metastasis.
With cytoreductive surgery (removing the kidney it came from) and immunotherapy (drugs that basically give you the flu) there is a 6 month survival benefit. Kidney cancer doesn't respond to chemotherapy or radiation due to a mutation that allows it to basically pump toxins out to keep producing more cancer.
Bladder cancer and Kidney cancer fight over the 6th and 7th most common cancer in the US.
Muscle invasive bladder cancer is a maneater. Without treatment it has 2 year survival. Stage 3 and 4 have about a 6 month survival.
The cure is a radical cystoprostatectomy where the bladder and prostate are removed completely as well as most of the lymph nodes.
Usually a piece of bowel is cut out to make an ostomy and the ureters (the tubes from the kidney) are attached so allow urine to be collected into a bag.
Funny how Philip Morris doesn't feel the need to make a "truth" commercial about smoking making it that you have to drain pee into a bag on you abdominal wall. Or one where they mention it can turn your kidney into an immortal cancer that chemotherapy and radiation can't touch.
I am very sorry about your cancer, but smoking probably played a factor.
http://www.ncbi.nlm.nih.gov/pubmed/9610793