<s>[INST] My father was diagnosed with kidney cancer.  The growth which is attached to his kidney is half the size of an apple.  What I want to know is how long and how fast does kidney cancer spread to other parts of the body?  He was diagnosed after having pain in lower back and stomache, no blood in urine.  When they talk about stages of cancer, does that mean eventually the cancer goes through all these stages? [/INST] Hi, dearI have gone through your question. I can understand your concern.  He may have renal cell carcinoma.  It spread to the bone, lung or other body parts.  Stage depends on size and spread of cancer.  He should go for pet scan and mri.  Then he should take treatment accordingly.  Total nephrectomy or radical nephrectomy is the treatment of choice followed by chemotherapy.  Consult your doctor and take treatment accordingly. Hope I have answered your question, if you have doubt then I will be happy to answer. Thanks for using health care magic. Wish you a very good health. </s>