Could a kidney cancer exist for 17 years?

Yes. At autopsy, I've often found tiny cancers and thought, "Maybe it would have been big enough to be a problem in maybe twenty years."

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Please tell me, could a kidney cancer exist for 17 years?

Very, very unlikely. Kidney cancers almost always grow a lot faster, although it is theoretically possible that it could have existed as a tiny tumor for a number of years before enlarging. Kidney cancers can also develop in complex kidney cysts. So 17 year-old kidney x-rays or ultrasounds might demonstrate a cyst at present site of a tumor. Benign angiomyolipomas of kidney can turn into kidney cancer with time. Read more...