Gallbladder cancer occurs when cells in the gallbladder start to grow out of control. The gallbladder is a pear-shaped organ that lies just under the liver in the upper abdomen. The gallbladder stores bile, a fluid made by the liver to digest fat. When food is being broken down in the stomach and intestines, bile is released from the gallbladder through a tube called the common bile duct, which connects the gallbladder and liver to the first part of the small intestine.
The wall of the gallbladder has 4 main layers of tissue:
Primary gallbladder cancer starts in the inner layer and spreads through the outer layers as it grows.
These and other signs and symptoms may be caused by gallbladder cancer or by other conditions. Check with your doctor if you have any of the following:
Gallbladder cancer is difficult to detect and diagnose for the following reasons:
Gallbladder cancer is sometimes found when the gallbladder is removed for other reasons. Although gallstones are the most common risk factor for developing gallbladder cancer, the overall risk is low. Most people with gallstones do not develop gallbladder cancer.
Procedures that make pictures of the gallbladder and the area around it help diagnose gallbladder cancer and show how far the cancer has spread. The process used to find out if cancer cells have spread within and around the gallbladder is called staging.
To plan treatment, it is important to know if the gallbladder cancer can be removed by surgery. Tests and procedures to detect, diagnose, and stage gallbladder cancer are usually done at the same time. In addition to asking about your personal and family health history and doing a physical exam, your doctor may perform the following tests and procedures:
The prognosis and treatment options depend on:
Treatment may also depend on the age and general health of the patient and whether the cancer is causing signs or symptoms.
Gallbladder cancer can be cured only if it is found before it has spread, when it can be removed by surgery. If the cancer has spread, palliative treatment can improve the patient's quality of life by controlling the symptoms and complications of this disease.
See the General Information section for a description of tests and procedures used to detect, diagnose, and stage gallbladder cancer.
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 gallbladder cancer spreads to the liver, the cancer cells in the liver are actually gallbladder cancer cells. The disease is metastatic gallbladder cancer, not liver cancer.
In stage 0, abnormal cells are found in the mucosa (innermost layer) of the gallbladder wall. These abnormal cells may become cancer and spread into nearby normal tissue. Stage 0 is also called carcinoma in situ.
In stage I, cancer has formed in the mucosa (innermost layer) of the gallbladder wall and may have spread to the muscle layer of the gallbladder wall.
Stage II is divided into stages IIA and IIB, depending on where the cancer has spread in the gallbladder.
Stage III is divided into stages IIIA and IIIB, depending on where the cancer has spread.
Stage IV is divided into stages IVA and IVB.
Cancer is found in the wall of the gallbladder and can be completely removed by surgery.
Unresectable cancer cannot be removed completely by surgery. Most patients with gallbladder cancer have unresectable cancer.
Recurrent cancer is cancer that has recurred (come back) after it has been treated. Gallbladder cancer may come back in the gallbladder or in other parts of the body.
Metastasis is the spread of cancer from the primary site (place where it started) to other places in the body. Metastatic gallbladder cancer may spread to surrounding tissues, organs, throughout the abdominal cavity, or to distant parts of the body.
Different types of treatments are available for patients with gallbladder 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. Patients may want to think about taking part in a clinical trial. Some clinical trials are open only to patients who have not started treatment.
Gallbladder cancer may be treated with a cholecystectomy, surgery to remove the gallbladder and some of the tissues around it. Nearby lymph nodes may be removed. A laparoscope is sometimes used to guide gallbladder surgery. The laparoscope is attached to a video camera and inserted through an incision (port) in the abdomen. Surgical instruments are inserted through other ports to perform the surgery. Because there is a risk that gallbladder cancer cells may spread to these ports, tissue surrounding the port sites may also be removed.
If the cancer has spread and cannot be removed, the following types of palliative surgery may relieve symptoms:
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. External radiation therapy uses a machine outside the body to send radiation toward area of the body with cancer.
Chemotherapy is a cancer treatment that uses drugs to stop the growth of cancer cells, either by killing the cells or by stopping the cells 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 therapy).
This summary section describes treatments that are being studied in clinical trials. It may not mention every new treatment being studied. Information about clinical trials is available from the NCI website.
Clinical trials are studying ways to improve the effect of radiation therapy on tumor cells, including the following:
Targeted therapy is a type of treatment that uses drugs or other substances to identify and attack specific cancer cells. The following targeted therapies are being studied in patients with gallbladder cancer that is locally advanced and cannot be removed by surgery or has spread to other parts of the body:
Immunotherapy is a treatment that uses the patient's immune system to fight cancer. Substances made by the body or made in a laboratory are used to boost, direct, or restore the body's natural defenses against cancer.
Immune checkpoint inhibitor therapy is a type of immunotherapy that may be used to treat gallbladder cancer.
For information about side effects caused by treatment for cancer, visit our Side Effects page.
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. Information about clinical trials supported by NCI can be found on NCI’s clinical trials search webpage. Clinical trials supported by other organizations can be found on the ClinicalTrials.gov website.
As you go through treatment, you will have follow-up tests or check-ups. Some tests that were done to diagnose or stage the cancer may be repeated 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.
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 condition has changed or if the cancer has recurred (come back).
For information about the treatments listed below, see the Treatment Option Overview section.
Treatment of localized and locally advanced gallbladder cancer may include:
Use our clinical trial search to find NCI-supported cancer clinical trials that are accepting patients. You can search for trials based on the type of cancer, the age of the patient, and where the trials are being done. General information about clinical trials is also available.
For information about the treatments listed below, see the Treatment Option Overview section.
Treatment of unresectable, metastatic, or recurrent gallbladder cancer is usually within a clinical trial. Treatment may include:
Use our clinical trial search to find NCI-supported cancer clinical trials that are accepting patients. You can search for trials based on the type of cancer, the age of the patient, and where the trials are being done. General information about clinical trials is also available.
For more information from the National Cancer Institute about gallbladder cancer, see the Gallbladder Cancer Home Page.
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