Liver cancer is not treated in exactly the same way for every patient. The appropriate treatment depends on the type of liver cancer, how far it has progressed, where the tumor is located, whether it can be removed, and how well the liver is functioning.
For people with primary liver cancer, treatment may involve surgery, liver transplantation, tumor ablation, embolization procedures, radiation therapy, targeted medicines, immunotherapy, or combinations of these approaches. Understanding liver cancer treatment begins with understanding why these options are selected differently for different situations.
What Determines How Liver Cancer Is Treated?
Before treatment is recommended, the medical team looks at much more than the size of the tumor. Several factors influence the treatment plan.
- Type of liver cancer: Hepatocellular carcinoma (HCC) is the most common primary liver cancer in adults. Intrahepatic cholangiocarcinoma, which begins in the bile ducts within the liver, is treated differently.
- Stage of the cancer: Doctors determine whether the cancer is confined to the liver, has invaded blood vessels or nearby structures, or has spread to other parts of the body.
- Number and size of tumors: A single small tumor may be approached differently from multiple or larger tumors.
- Location of the tumor: The position of a tumor in relation to major blood vessels and bile ducts can affect whether surgery or ablation is possible.
- Liver function: Underlying cirrhosis, portal hypertension and the amount of healthy liver remaining are particularly important when treating HCC.
- Overall health: The person's general condition and ability to tolerate a particular treatment are also considered.
Because these factors often overlap, treatment planning may involve a multidisciplinary team rather than a single specialist working alone.
*AI-generated image - for illustration only. Clinical accuracy is not guaranteed.
How Is Early or Localized Liver Cancer Treated?
When liver cancer is detected before it has spread extensively, treatment may focus on eliminating the tumor or, in selected cases, replacing a diseased liver.
Surgery to Remove the Tumor
A partial hepatectomy removes the portion of the liver containing the cancer while preserving as much healthy liver tissue as possible. It may be considered when the tumor can be completely removed and enough functioning liver will remain afterward.
Surgery is particularly important in selected patients with localized HCC who have adequate liver function. The amount of liver that can safely be removed depends on the tumor's location and extent as well as the condition of the remaining liver.
Liver Transplantation
A liver transplant removes the diseased liver and replaces it with a healthy donor liver. For carefully selected patients with HCC confined to the liver, transplantation can treat both the cancer and significant underlying liver disease such as cirrhosis.
*AI-generated image - for illustration only. Clinical accuracy is not guaranteed.
Not everyone with liver cancer is eligible for transplantation. Eligibility depends on factors such as tumor size, number of tumors, spread of the disease, liver function and transplant-specific criteria.
Tumor Ablation
Ablation destroys a tumor without removing it surgically. It may be useful for selected small liver tumors, particularly when conventional surgery is not the most suitable approach. Depending on the circumstances, techniques can include:
- Radiofrequency ablation (RFA)
- Microwave ablation
- Cryoablation
- Other specialized ablative techniques
These procedures are usually performed using imaging guidance so that the treatment can be directed toward the tumor while limiting injury to surrounding liver tissue.
What If the Cancer Cannot Be Removed Surgically?
Not being a candidate for surgery does not mean that there are no treatment options. When a tumor cannot be safely removed or ablated, treatment may focus on controlling the cancer within the liver or treating it throughout the body.
For selected liver-confined or locally advanced HCC, doctors may consider transarterial treatments. These procedures use a catheter to reach blood vessels supplying the tumor and reduce its blood supply, sometimes while delivering an anticancer drug directly to the tumor.
Transarterial Embolization
Embolization blocks or reduces blood flow to the tumor. The principle takes advantage of the fact that liver tumors often receive much of their blood supply through the hepatic artery, while normal liver tissue receives substantial blood flow through the portal vein.
Transarterial Chemoembolization
Transarterial chemoembolization, or TACE, combines arterial embolization with delivery of chemotherapy near the tumor. The aim is to expose the tumor to concentrated treatment while also reducing its blood supply.
Whether TACE or another transarterial approach is appropriate depends on tumor characteristics and the condition of the liver. These procedures are not suitable for every patient, particularly when liver function is significantly impaired or the disease pattern makes the treatment unsafe or ineffective.
How Is Advanced Liver Cancer Treated?
When liver cancer has spread outside the liver or cannot be treated effectively with surgery or a local procedure, systemic treatment may be used. These medicines travel through the bloodstream and can act on cancer cells throughout the body.
Immunotherapy
Immunotherapy helps the immune system recognize and attack cancer cells. Immune checkpoint inhibitors have become an important part of treatment for advanced HCC, with different immunotherapy-based regimens available depending on the patient's circumstances.
*AI-generated image - for illustration only. Clinical accuracy is not guaranteed.
Some treatments combine an immunotherapy drug with another type of medicine. The choice depends on factors such as liver function, previous treatment, bleeding risk, overall health and the specific characteristics of the cancer.
Targeted Therapy
Targeted therapies work on specific biological pathways involved in cancer growth and survival. Several targeted medicines are used in advanced HCC, including drugs that interfere with signals involved in tumor growth and blood-vessel formation.
Targeted therapy may be used when immunotherapy-based treatment is unsuitable or as a subsequent treatment after the cancer progresses, depending on the individual situation.
Chemotherapy
Traditional systemic chemotherapy has a more limited role in HCC than it does in some other cancers. However, chemotherapy remains an important treatment for certain other primary liver cancers, particularly cholangiocarcinoma.
This distinction matters because “liver cancer” describes more than one disease. The treatment used for hepatocellular carcinoma should not automatically be assumed to apply to intrahepatic cholangiocarcinoma.
How Is Intrahepatic Cholangiocarcinoma Treated?
Intrahepatic cholangiocarcinoma begins in the bile ducts within the liver and follows a different treatment pathway from HCC.
When the cancer is localized and can be completely removed, surgery may offer the possibility of long-term disease control. Depending on the extent of the tumor, this can involve removing part of the liver.
When surgery is not possible because the cancer is unresectable, recurrent or metastatic, treatment may include systemic chemotherapy, immunotherapy and, in selected patients, targeted therapy based on specific molecular characteristics of the cancer. This is why identifying the exact type of liver cancer is an essential first step before discussing treatment.
Does Radiation Therapy Have a Role in Liver Cancer?
Radiation therapy can be used in selected situations. Modern techniques allow radiation to be directed more precisely toward a tumor while attempting to limit exposure to surrounding healthy liver tissue.
Depending on the clinical situation, radiation may be considered for localized disease, recurrent cancer, tumors that cannot be treated adequately with surgery or ablation, or for controlling symptoms caused by cancer.
Stereotactic body radiation therapy (SBRT), for example, delivers highly focused radiation in a limited number of treatment sessions and may be considered for carefully selected liver tumors.
Can More Than One Liver Cancer Treatment Be Used Together?
Yes. Liver cancer treatment is sometimes a sequence rather than a single procedure. A patient may receive one treatment to control the tumor in the liver and another to address disease elsewhere. Treatment may also be given before surgery to reduce or control the tumor, or after surgery to reduce the risk of recurrence in selected cancers.
For example, transarterial treatment and systemic therapy may be combined in certain HCC treatment strategies. Similarly, patients with cholangiocarcinoma may receive surgery followed by additional treatment depending on the final pathology and recurrence risk.
Combination treatment is not automatically better for every patient. The potential benefit has to be weighed against liver function, side effects and the patient's ability to tolerate treatment.
What If the Cancer Cannot Be Cured?
Some liver cancers cannot be completely removed or eliminated. In these situations, treatment may still be valuable for controlling the disease, slowing its progression and managing symptoms.
Systemic therapy, transarterial procedures, radiation and supportive care may all have roles depending on the disease. Supportive or palliative care can also be provided alongside cancer treatment to help manage pain, fatigue, nutritional problems, or other symptoms and maintain quality of life.
Importantly, palliative treatment does not mean that care has stopped. It means that symptom control and quality of life are included as important treatment goals.
Why Is Liver Function So Important in Treatment?
Liver cancer is unusual because the organ containing the tumor may already be affected by another disease. Cirrhosis, hepatitis-related liver damage and other forms of chronic liver disease can reduce the liver's ability to tolerate surgery or certain locoregional treatments.
Two people with tumors of similar size may therefore receive different treatments because their underlying liver function is different. Doctors may assess liver function using blood tests, clinical findings and established scoring systems. They also consider how much healthy liver would remain after a proposed procedure.
The Bottom Line
Liver cancer treatment is highly individualized. For selected early-stage cancers, the goal may be to remove or completely destroy the tumor through surgery, ablation or, in appropriate patients, liver transplantation. When surgery is not possible, treatments such as embolization, radiation therapy and systemic medicines can be used to control the disease.
The type of cancer matters just as much as its stage. Hepatocellular carcinoma and intrahepatic cholangiocarcinoma arise from different cells and therefore follow different treatment pathways.
Ultimately, the treatment plan depends on the cancer's location and extent, the condition of the liver, the patient's overall health and whether the disease can be treated locally or requires treatment throughout the body. A multidisciplinary assessment helps bring these factors together and determine the most appropriate treatment strategy for the individual patient.
