Hi AlfHam, I was diagnosed with stage 4 kidney cancer (MRCC) back in August of 2012. Mine had already spread, which is how it was found. Kidney cancer, if it's left untreated, will usually spread upwards in the body, affecting the lungs, liver, spleen, brain & bones....usually. So, it probably has nothing to do with your toe being swollen. If it gets in your bones, it will be very painful. I have bone mets in a couple of my ribs, my right jaw & in my skull. Radiation is really the only way to ease the pain from bone Mets, but don't worry about that until you need to. You're lucky you have caught it early, as kidney cancer sneaks up on you. Most people don't know they have it until it's already spread. I wish you all the very best for your future, & hope you get no more recurrencesof it. Budgie
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