Cheryl,
I think your guess as to it being a pre-surgery consultation is probably right on the money, don't let your fear take over. I understand there's alot going on not only with your Mother but also your Father, and that has to be scaring you half to death. I lost both my parents in the past year, my Mom (86 and not from cancer) on 30 October 2005 and Dad (88 and not from cancer) 12 January 2006, and so I can understand your concerns about both of them confronting cancer at the same time (although I know your Dad's is not confirmed yet). It does sound like it must be superficial or I doubt they would wait so long to take another look. You also report that "it was a slow growing tumor", which is another reason you can worry a little less. Their perhaps not getting it all during the last TURBT is not uncommon and coming back now for another look will probably be beneficial as it will give them an opportunity to study whatever might have been left from before and also to see if there has been any new growth.
I don't know if I suggested to you about the deep breathing technique for relaxation previously, but it would be a good thing for you to try again or for the first time which ever. I hope your Father's results will be good news, and the same for your Mother. Do let us know how they're both doing, and know we'll keep you all in our thoughts and prayers.
Lou Graham