Just a quick update on my Dad's health. He just had surgery to remove the kidney that was cancerous. The entire procedure took only 25 minutes. The surgeon said that this was one of the quickest & cleanest surgeries he's ever performed.
No complications and it appears that all of the cancer was contained in the one kidney. Dad's recovering and should be able to go home in a couple of days.
Thanks to everyone for all of your support and well wishes. It really means a lot to me.