Hi, Thanks for writing in. It is not possible to sacrifice both kidneys entirely in a patient having kidney cancer. Kidneys are important organs and no one will survive with both kidneys knocked off. It is possible that the kidneys were partially operated in your husband and the tumor part has been excised. Please have an open discussion with your husband and discuss his medical reports with due respect to his privacy. It is possible that his doctor is considering alternative treatments to help him deal with his illness. There are newer methods like ablative treatment which will destroy cancer cells only in a limited area where there are cancer cells. Please do not worry.