I recently had a several UTIs, a little blood in my water, plus other symptoms that my GP thought could be kidney stones. So I went for a CT scan of my kidneys, urethra and bladder. This came back clear, and for the past few weeks all my symptoms have cleared up. So given I had a clear result from my CT scan, can I assume there isn't any cancer in my kidneys, urethra or bladder? I don't think the doctor was suspecting cancer, but it has crossed my mind a few times. I assume cancerous growths show up on a CT scan?