Thanks for your response. Definitely stage 1. Did not get to the muscle. Second look at the biopsied area showed no sign of remaining cancer.
I'm also on HBOT weekly, and take various supplements, including 6g of lypospheric vit C daily.
The growth removed was likely caused by considerable stress put on my bladder. I was carrying up to 32 oz of urine and feeling no pain. That issue has been pretty much resolved by using a catheter each evening to clear out the balance, so far from 100 to 400 liters. Hopefully the wounded bladder will recover in time, permitting me to eliminate most or all during daily pees.