Doctors at the AINU in Hyderabad have successfully removed a football-sized kidney tumor weighing 10 ks to save a 53-year-old man. This successful surgery is the first of its kind registered in the Telugu States and the second instance in the country, the hospital said on Thursday. Dr. Mallikarjuna C, including Dr. Taif Bendigeri and Dr. Rajesh K. Reddy, successfully performed this challenging procedure.