I had cervical cancer in 1983 and just two years ago discovered scarring from radiation on the walls of my bladder. The scarring was also found in my colon, creating blockage. I'll be going to Mayo in January for evaluation and testing, to be followed by bladder removal and some kind of colo/rectal surgery, possibly a colostomy, both being done at the same time. I had no symptoms, but this was found by abnormal blood test results. So in answer to your question, it can take a long time to show up. Doctors are stumped why it took so long for mine. Guess I'm just fortunate that it did. I haven't found much on the internet either. I wish you good luck in your testing. ... View more