Stan,
(shortened from subSTANdard)
Welcome to the forum.
Statistics can be a funny thing. Unless they are fully stated, they are meaningless. You mention a doctor citing a 50% survival at 5 years. That number seems rather out of date; treatment keeps changing for the better. One on one, we have NO idea of any individuals chances, but the statistics are important.
See the website below, where the 5 year, Stage 2 survival rate is 70%. (Looking back 6 years, the rate was about 64%)
www.cancer.net/cancer-types/bladder-cancer/statistics
I dislike hearing a 50% number - I have found doctors to use it to mean, "either you do or you don't", rather than describing an actual percent of likelihood of a positive result.
Also, you note, "It seems I caught a rather rare version of bladder cancer", which you described as "high grade, aggressive T2". That description states the SAME information 3 times. Simply calling it Stage 2 says everything. All the unnecessary adjectives just makes it sound worse.
Stage 2 is described as- T2a or T2b, N0, M0, stage II means that the cancer has grown into the muscle layer of the bladder wall. It has not grown through the muscle layer into the fatty tissue surrounding the bladder. In this bladder cancer stage, the disease has not spread to lymph nodes or distant sites.
Almost half of all bladder cancers are first diagnosed at Stage 2.
I think it is fair to say that most of us here took a blow to the guts when the word Cancer was said by the doctor. It takes a little while to sort things out. give yourself some to digest all of this. If you need help coping, ask your doctor and expect a response that works for you. Try to turn away from the negative feelings and look toward the chance to beat this disease.
Others have suggested getting a second opinion; I agree.
Best,
Jack