More than 38-thousand people are diagnosed with kidney cancer each year.
Many more will be diagnosed with non-cancerous tumors in their kidneys but either way, surgery is the preferred option.
Milt Sorenson has been retired for 16 years, but recent scare left milt and his wife worried about the future because doctors found a tumor in his kidney.
Mayo clinic doctors decided against the standard procedure, surgery.
Instead, they are freezing the tumor with a procedure called cyro-ablation.
"When we feel confident that the ice ball has encompassed the tumor properly, we know that we've been successful in treating the tumor," says Dr. Thomas Atwell of Mayo Clinic.
In fact, in 95 percent of patients treated with this technique, their tumors were completely destroyed and they recovered more quickly.