"Cryoablation is a technique that, with the help of extreme cold, causes the tumor cell apoptosis through ice crystal formation and cellular rupture. It is a particularly great method for tumors located near critical blood vessels or nerves, because it allows for precise control with minimal damage to surrounding tissues. Cryoablation also works with real-time visualization that increases precision. In patients with colorectal cancer, it is used for both curative and palliative purposes. In some cases, it can also stimulate a local immune response against the tumor."