Mom has a recurrent burning problem with urination. After several stops to the regular doc (who keeps diagnosing as UTI)... it flared up again, so she went to a specialist. Urine is normal... no blood or infection. Doc did an ultrasound and found "something" on a kidney. She is going for a CT tomorrow. He said he it could be anything... stone, cyst etc, but my head keeps going in the wrong place and thinking cancer. She has no other symptoms... maybe a little fatigue... no pain.
For early stage kidney cancer, would no other symptoms be normal or would there likely be something else symptomatic going on?