It turned out I had a small lesion on my right kidney. I was referred to a urologic oncologist and we monitored it for about 2-1/2 years with scans. In April, 2016, a scan determined the lesion had grown, so in June, 2016, I had a robotic assisted partial nephrectomy. about 1 cubic inch was removed. I had the surgery at 3PM and I was released the next day at 1:30PM.
The pathology on the lesion showed it was chromophobe renal cell carcinoma, a form of kidney cancer that grows very slowly, rarely spreads and rarely comes back.