Thank you. Two years ago I had an open, partial nephrectomy for cancer, a spot near the renal vein on the right kidney. Recently I have been having intermittent pain in the lower back, right side, and coming part way around the waist. Position does not seem to bring it on, however, adjusting posture does not alleviate it. I do not think I have had fevers, although I have had chills. No blood visible in urine, although I have had occult blood in urine in the past, cystoscopy showed no abnormalities in the bladder. This flank pain is completely new; never had any symptoms of the cancer which was found incidentally during a CAT scan for a different problem!