Sorry you're so scared and don't want to give false hope, but according to the urology care foundation not only is kidney cancer fairly easy to treat, but many people do have benign cysts on their kidneys

Rarely do they even need treatment of any sort or cause problems and are often discovered by unrelated tests. So it's great that they don't believe they are cancerous.

Sometimes the net is too good at confirming our worse fears and not real good and easing our minds. Definitely wouldn't pop the cork on the champagne until hearing for the doc, and would kick the butts of family members

I'll definitely pray that the worst medicine you'll have to take is some cranberry juice. Best of luck on your follow up