I am a nephrologist and I have no surgical expertise. I am unable to accept medical reports or offer medical advice without performing a complete history and physical examination. I suggest that you seek a second opinion for your mother from a urologist. A urologist is a surgeon and has expertise in surgery of the kidney.
For additional information about kidney disease, please visit our website at: https://www.kidney.org/atoz/atozTopic_KidneyDisease
For more inforamation about one kidney, please visit our website at: https://www.kidney.org/atoz/content/onekidney