I have been serching for someone who has the rare cancer I have and stumbled on your post. I don't have the same but it sounds close. I had a tumor in the kidney. After learning it was cancer, I was hoping it was renal cell which, once the kidney is removed, the cancer is usually gone. When the biopsy was complete I was told I had a very, very rare cancer; small cell cancer of the kidney. I was told that small cell is usually found in the lung. I don't know if this is the same type of cancer cell you have but it sounds suspiciously alike. I start chemo on 4-30.