Thanks everyone, I very much appreciate your support.
It sounds like there will be more testing done mid-week followed by the main surgery sometime next week or early January. If all of the vitamins that he's been taking for years have been effective then I'm hopeful for a good outcome.
When I'm not working this week or visiting with family, I hope to catch up on Cascadia tasks. Also, I may join the Beowulf cluster tonight if I get a good chunk of work finished by that time today.
Pine