Hi Rosemary,
It's helpful to read your history all in a row like this, although it's not exactly light reading! That's the trouble with bladder cancer, it sometimes shows up with different types of tumors found together. I've often heard of low and high grade, or papillary (usually low grade) showing up with CIS-always high grade. It does make treatments tricky in the face of your unusually bad side effects.
Dr. Lamm's answers were great. Of course the point is, there is no "one" answer, that's the nature of cancer treatment.
MCC is Urocidin, there's a page about it on webcafe, also on KLH, which is an immotherapy that for some strange reason never took off although it seemed to hold much promise.
I'm glad you are clear right now. Thanks for your post.
Wendy