Microwave ablation uses the energy from electromagnetic waves to heat and destroy the tumor using a probe. A high-frequency current is then passed through the tip of the probe, which heats the tumor and destroys the cancer cells. The doctor inserts a thin, needle-like probe into the tumor through the skin. Radiofrequency ablation is one of the most common ablation methods for small tumors. It uses high-energy radio waves. Sometimes, though, to be sure the treatment is aimed at the right place, the ablation may be done in the operating room under general anesthesia (you are asleep) and may need an incision (cut) like the one for a partial hepatectomy The needle or probe is guided into place with ultrasound or CT scan.
Often, ablation can be done without surgery by inserting a needle or probe into the tumor through the skin. People getting this type of treatment typically do not need to stay in a hospital. Because ablation often destroys some of the normal tissue around the tumor, it might not be a good choice for treating tumors near major blood vessels, the diaphragm, or major bile ducts. For slightly larger tumors (1 to 2 inches, or 3 to 5 cm across), it may be used along with embolization. These treatments are also sometimes used in patients waiting for a liver transplant.Īblation is best used for tumors no larger than 3 cm across (a little over an inch). They are less likely to cure the cancer than surgery, but they can still be very helpful for some people. These techniques can be used in patients with a few small tumors and when surgery is not a good option (often because of poor health or reduced liver function).
Ablation is treatment that destroys liver tumors without removing them.
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