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The liver is one of the largest organs in the body. It has four lobes and fills the upper right side of the abdomen inside the rib cage. Three of the many important functions of the liver are:
Liver cancer is rare in children and adolescents (teenagers). There are two main types of childhood liver cancer:
The treatment of two less common types of childhood liver cancer is also discussed in this summary:
Epithelioid hemangioendothelioma is a rare cancer of the blood vessels that occurs in the liver and other organs. See the Epithelioid hemangioendothelioma section in the PDQ summary on Childhood Soft Tissue Sarcoma Treatment for more information.
This summary is about the treatment of primary liver cancer (cancer that begins in the liver). Treatment of metastatic liver cancer, which is cancer that begins in other parts of the body and spreads to the liver, is not discussed in this summary. Primary liver cancer can occur in both adults and children. However, treatment for children is different than treatment for adults. See the PDQ summary on Adult Primary Liver Cancer Treatment for more information.
Anything that increases your chance of getting a disease is called a risk factor. Having a risk factor does not mean that you will get cancer; not having risk factors doesn’t mean that you will not get cancer. Talk with your child’s doctor if you think your child may be at risk.
Risk factors for hepatoblastoma include the following:
Risk factors for hepatocellular carcinoma include the following:
Patients with tyrosinemia or progressive familial intrahepatic disease may receive a liver transplant before there are signs or symptoms of cancer.
Signs and symptoms are more common after the tumor gets big. Other conditions can cause the same signs and symptoms. Check with your child’s doctor if your child has any of the following:
The following tests and procedures may be used:
The following test may be done on the sample of tissue that is removed:
The prognosis (chance of recovery) and treatment options depend on the following:
Prognosis may also depend on:
For childhood liver cancer that recurs (comes back) after initial treatment, the prognosis and treatment options depend on:
Childhood liver cancer may be cured if the tumor is small and can be completely removed by surgery. Complete removal is possible more often for hepatoblastoma than for hepatocellular carcinoma.
The process used to find out if cancer has spread within the liver or to other parts of the body is called staging. The information gathered from the staging process determines the stage of the disease. It is important to know the stage in order to plan treatment.
The following tests and procedures may be used in the staging process for hepatoblastoma and hepatocellular carcinoma:
Two staging systems are used for childhood liver cancer:
The liver is divided into 4 vertical sections.
In stage 1, the cancer is found in one section of the liver. Three sections of the liver that are next to each other do not have cancer in them.
In stage 2, cancer is found in one or two sections of the liver. Two sections of the liver that are next to each other do not have cancer in them.
In stage 3, one of the following is true:
In stage 4, cancer is found in all four sections of the liver.
In stage I, the tumor was in the liver only and all of the cancer was removed by surgery.
In stage II, the tumor was in the liver only. After the cancer was removed by surgery, a small amount of cancer remains that can only be seen with a microscope.
In stage III:
In stage IV, the cancer has spread to other parts of the body, such as the lung or brain.
Cancer can spread through tissue, the lymph system, and the blood:
When cancer spreads to another part of the body, it is called metastasis. Cancer cells break away from where they began (the primary tumor) and travel through the lymph system or blood.
The metastatic tumor is the same type of cancer as the primary tumor. For example, if childhood liver cancer spreads to the lung, the cancer cells in the lung are actually liver cancer cells. The disease is metastatic liver cancer, not lung cancer.
Recurrent childhood liver cancer is cancer that has recurred (come back) after it has been treated. The cancer may come back in the liver or in other parts of the body.
Different types of treatments are available for children with liver cancer. Some treatments are standard (the currently used treatment), and some are being tested in clinical trials. A treatment clinical trial is a research study meant to help improve current treatments or obtain information on new treatments for patients with cancer. When clinical trials show that a new treatment is better than the standard treatment, the new treatment may become the standard treatment.
Because cancer in children is rare, taking part in a clinical trial should be considered. Some clinical trials are open only to patients who have not started treatment.
Treatment will be overseen by a pediatric oncologist, a doctor who specializes in treating children with cancer. The pediatric oncologist works with other healthcare providers who are experts in treating children with liver cancer and who specialize in certain areas of medicine. It is especially important to have a pediatric surgeon with experience in liversurgery who can send patients to a liver transplant program if needed. Other specialists may include the following:
Side effects from cancer treatment that begin during or after treatment and continue for months or years are called late effects. Late effects of cancer treatment may include:
Some late effects may be treated or controlled. It is important to talk with your child's doctors about the effects cancer treatment can have on your child. (See the PDQ summary on Late Effects of Treatment for Childhood Cancer for more information).
When possible, the cancer is removed by surgery.
Factors that affect the type of surgery used include the following:
Chemotherapy is sometimes given before surgery, to shrink the tumor and make it easier to remove. This is called neoadjuvant therapy. Even if the doctor removes all the cancer that can be seen at the time of the surgery, some patients may be given chemotherapy or radiation therapy after surgery to kill any cancer cells that are left. Treatment given after the surgery, to lower the risk that the cancer will come back, is called adjuvant therapy.
Watchful waiting is closely monitoring a patient’s condition without giving any treatment until signs or symptoms appear or change.
Chemotherapy is a cancer treatment that uses drugs to stop the growth of cancer cells, either by killing the cells or by stopping them from dividing. When chemotherapy is taken by mouth or injected into a vein or muscle, the drugs enter the bloodstream and can reach cancer cells throughout the body (systemic chemotherapy). When chemotherapy is placed directly into the cerebrospinal fluid, an organ, or a body cavity such as the abdomen, the drugs mainly affect cancer cells in those areas (regional chemotherapy). Treatment using more than one anticancer drug is called combination chemotherapy. The way the chemotherapy is given depends on the type and stage of the cancer being treated.
Chemoembolization of the hepatic artery (the main artery that supplies blood to the liver) is a type of regional chemotherapy used to treat childhood liver cancer. The anticancer drug is injected into the hepatic artery through a catheter (thin tube). The drug is mixed with a substance that blocks the artery, cutting off blood flow to the tumor. Most of the anticancer drug is trapped near the tumor and only a small amount of the drug reaches other parts of the body. The blockage may be temporary or permanent, depending on the substance used to block the artery. The tumor is prevented from getting the oxygen and nutrients it needs to grow. The liver continues to receive blood from the hepatic portal vein, which carries blood from the stomach and intestine.
Radiation therapy is a cancer treatment that uses high-energy x-rays or other types of radiation to kill cancer cells or keep them from growing. There are two types of radiation therapy. External radiation therapy uses a machine outside the body to send radiation toward the cancer. Internal radiation therapy uses a radioactive substance sealed in needles, beads, seeds, wires, or catheters that are placed directly into or near the cancer. The way the radiation therapy is given depends on the type and stage of the cancer being treated.
Radioembolization of the hepatic artery (the main artery that supplies blood to the liver) is a type of internal radiation therapy used to treat childhood liver cancer. A very small amount of a radioactive substance is attached to tiny beads that are injected into the hepatic artery through a catheter (thin tube). The beads are mixed with a substance that blocks the artery, cutting off blood flow to the tumor. Most of the radiation is trapped near the tumor to kill the cancer cells. This is done to relieve symptoms and improve quality of life for children with hepatocellular carcinoma.
Percutaneous ethanol injection is a cancer treatment in which a small needle is used to inject ethanol (alcohol) directly into a tumor to kill cancer cells.
Hepatocellular carcinoma that is linked to the hepatitis B virus is not common in children in the United States. Antiviral drugs that treat infection caused by the hepatitis B virus are being studied in the treatment of hepatocellular carcinoma.
Information about clinical trials is available from the NCI Web site.
For some patients, taking part in a clinical trial may be the best treatment choice. Clinical trials are part of the cancer research process. Clinical trials are done to find out if new cancer treatments are safe and effective or better than the standard treatment.
Many of today's standard treatments for cancer are based on earlier clinical trials. Patients who take part in a clinical trial may receive the standard treatment or be among the first to receive a new treatment.
Patients who take part in clinical trials also help improve the way cancer will be treated in the future. Even when clinical trials do not lead to effective new treatments, they often answer important questions and help move research forward.
Some clinical trials only include patients who have not yet received treatment. Other trials test treatments for patients whose cancer has not gotten better. There are also clinical trials that test new ways to stop cancer from recurring (coming back) or reduce the side effects of cancer treatment.
Clinical trials are taking place in many parts of the country. See the Treatment Options section that follows for links to current treatment clinical trials. These have been retrieved from NCI's listing of clinical trials.
Some of the tests that were done to diagnose the cancer or to find out the stage of the cancer may be repeated. Some tests will be repeated in order to see how well the treatment is working. Decisions about whether to continue, change, or stop treatment may be based on the results of these tests. This is sometimes called re-staging.
Some of the tests will continue to be done from time to time after treatment has ended. The results of these tests can show if your child's condition has changed or if the cancer has recurred (come back). These tests are sometimes called follow-up tests or check-ups.
Treatment of stages I and II hepatoblastoma may include the following:
Treatment of stage III hepatoblastoma may include the following:
The treatment of stage IV hepatoblastoma often includes chemotherapy and surgery. Combination chemotherapy is given to shrink the cancer in the liver and cancer that has spread to other parts of the body, such as the lungs or brain. After chemotherapy, imaging tests are done to check whether the cancer can be removed by surgery. Treatment may include one or more of the following:
Treatment of stages I and II hepatocellular carcinoma may include the following:
Treatment of stage III hepatocellular carcinoma and PRETEXT stage 4 hepatocellular carcinoma may include the following:
Treatment of stage IV hepatocellular carcinoma that was staged after surgery may include the following:
For children with advanced hepatocellular carcinoma, radioembolization may be used to relieve symptoms and improve quality of life.
Antiviral drugs that treat infection caused by the hepatitis B virus have also been used in the treatment of hepatocellular carcinoma.
Treatment of undifferentiatedembryonalsarcoma of the liver may include the following:
Treatment of choriocarcinoma of the liver in infants may include the following:
Treatment of recurrenthepatoblastoma may include the following:
Treatment of recurrenthepatocellular carcinoma may include the following:
Check for U.S. clinical trials from NCI's list of cancer clinical trials that are now accepting patients with childhood liver cancer. For more specific results, refine the search by using other search features, such as the location of the trial, the type of treatment, or the name of the drug. Talk with your child's doctor about clinical trials that may be right for your child. General information about clinical trials is available from the NCI Web site.
For more information from the National Cancer Institute about childhood liver cancer, see the following:
For more childhood cancer information and other general cancer resources, see the following:
This information is provided by the National Cancer Institute.
This information was last updated on August 22, 2014.