Liver Cancer Treatment Options

Liver cancer treatment depends on two things at once. How far has the cancer spread? How well does the rest of the liver work?

That second factor matters more here than in most other cancers. Most liver cancer grows in a liver already damaged by cirrhosis. A treatment that's simple in a healthy organ may not be safe here. Removing part of the liver is one example. It depends on how much healthy liver tissue is left. Because of this, two people can have a similar-sized tumor. Yet they can end up with very different treatment plans. It depends on how well their liver still works.

A partial hepatectomy removes the tumor. It also removes some surrounding healthy tissue — a wedge, a lobe, or a larger piece of the liver. This works because the liver can regrow. The remaining tissue regenerates. It takes over the job of the part removed. This option depends on how much healthy liver function remains. Doctors generally reserve it for people whose liver works well outside the cancer. It needs to tolerate losing part of it.

A liver transplant removes the whole diseased liver. It replaces it with a healthy donor liver. This works when the cancer is confined to the liver. It also needs to meet specific size and number limits. And a donor organ needs to be available. This works especially well for people with early-stage disease. It also helps those with cirrhosis too severe for partial removal. Transplant treats both the cancer and the underlying liver disease at once. Five-year survival after transplant for early-stage liver cancer runs about 60% to 70%.

Ablation destroys a tumor directly, without an open operation. Doctors use it for smaller tumors, or for people who aren't surgery candidates.

Radiofrequency ablation and microwave ablation use heat. Doctors deliver it through a needle placed right into the tumor. Percutaneous ethanol injection delivers concentrated alcohol into the tumor instead. Cryoablation freezes and destroys the tumor tissue. Doctors generally use these for smaller tumors. Sometimes they can cure early-stage disease in people who can't have surgery.

Embolization blocks or reduces blood flow to the tumor. Doctors deliver it through a catheter into the hepatic artery. That's the vessel that feeds most liver tumors. Normal liver tissue gets more blood from a separate source. So this targets the tumor specifically.

Transarterial embolization, or TAE, blocks blood flow alone. Transarterial chemoembolization, or TACE, adds something more. It combines a dose of chemotherapy delivered right to the tumor at the same time. This concentrates the drug where it's needed. It limits exposure elsewhere in the body. Doctors often use these approaches for tumors that can't be removed or ablated. They're also used to control disease while someone waits for a transplant.

Once liver cancer has spread beyond what local treatments can reach, drugs become the main approach. Targeted therapies block specific growth signals cancer cells rely on. These include sorafenib, lenvatinib, cabozantinib, regorafenib, and others. Immunotherapy has become an increasingly important option too. This includes checkpoint inhibitors like atezolizumab, often paired with bevacizumab. It also includes nivolumab, and nivolumab combined with ipilimumab. This reflects a broader shift in how doctors treat advanced liver cancer.

So much liver cancer grows in a liver already damaged by cirrhosis. Because of this, doctors weigh more than just the cancer's stage. They also weigh how much healthy liver reserve remains. Staging systems built for liver cancer reflect this. They combine tumor extent with liver function, not tumor size alone.

This is worth knowing going in. A treatment plan may look less aggressive than you'd expect for the tumor's size. That can reflect real limits on what the rest of the liver can safely handle. It doesn't mean a less serious approach to the cancer itself.

• National Cancer Institute — Liver Cancer Treatment.
• American Cancer Society — Liver Cancer Survival Rates.