Anterior mediastinotomy: A surgical procedure to look at the organs and tissues between the lungs and between the breastbone and heart for abnormal areas. An incision (cut) is made next to the breastbone and a mediastinoscope is inserted into the chest. A mediastinoscope is a thin, tube-like instrument with a light and a lens for viewing. It may also have a tool to remove tissue or lymph node samples, which are checked under a microscope for signs of cancer. This is also called the Chamberlain procedure.
Lymph node biopsy: The removal of all or part of a lymph node. A pathologist views the tissue under a microscope to look for cancer cells.
One or more of the following laboratory tests may be done to study the tissue samples:
Molecular test: A laboratory test to check for certain genes, proteins, or other molecules in a sample of tissue, blood, or other body fluid. Molecular tests check for certain gene or chromosome changes that occur in non-small cell lung cancer.
Immunohistochemistry: A test that uses antibodies to check for certain antigens in a sample of tissue. The antibody is usually linked to a radioactive substance or a dye that causes the tissue to light up under a microscope. This type of test may be used to tell the difference between different types of cancer.
Certain factors affect prognosis (chance of recovery) and treatment options.
The prognosis (chance of recovery) and treatment options depend on the following:
The stage of the cancer (the size of the tumor and whether it is in the lung only or has spread to other places in the body).
Whether there are signs and symptoms such as coughing or trouble breathing.
The patient’s general health.
For most patients with non-small cell lung cancer, current treatments do not cure the cancer.
If lung cancer is found, taking part in one of the many clinical trials being done to improve treatment should be considered. Clinical trials are taking place in most parts of the country for patients with all stages of non-small cell lung cancer. Information about ongoing clinical trials is available from the NCI website.
Stages of Non-Small Cell Lung Cancer
KEY POINTS
After lung cancer has been diagnosed, tests are done to find out if cancer cells have spread within the lungs or to other parts of the body.
There are three ways that cancer spreads in the body.
Cancer may spread from where it began to other parts of the body.
The following stages are used for non-small cell lung cancer:
Occult (hidden) stage
Stage 0
Stage I
Stage II
Stage III
Stage IV
After lung cancer has been diagnosed, tests are done to find out if cancer cells have spread within the lungs or to other parts of the body.
The process used to find out if cancer has spread within the lungs 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. Some of the tests used to diagnosenon-small cell lung cancer are also used to stage the disease. (See the General Information section.)
Other tests and procedures that may be used in the staging process include the following:
MRI (magnetic resonance imaging): A procedure that uses a magnet, radio waves, and a computer to make a series of detailed pictures of areas inside the body, such as the brain. This procedure is also called nuclear magnetic resonance imaging (NMRI).
CT scan (CAT scan): A procedure that makes a series of detailed pictures of areas inside the body, such as the brain, abdomen, and lymph nodes, taken from different angles. The pictures are made by a computer linked to an x-ray machine. A dye may be injected into a vein or swallowed to help the organs or tissues show up more clearly. This procedure is also called computed tomography, computerized tomography, or computerized axial tomography.
PET scan (positron emission tomography scan): A procedure to find malignanttumor cells in the body. A small amount of radioactiveglucose (sugar) is injected into a vein. The PET scanner rotates around the body and makes a picture of where glucose is being used in the body. Malignant tumor cells show up brighter in the picture because they are more active and take up more glucose than normal cells do.ENLARGEPET (positron emission tomography) scan. The patient lies on a table that slides through the PET machine. The head rest and white strap help the patient lie still. A small amount of radioactive glucose (sugar) is injected into the patient's vein, and a scanner makes a picture of where the glucose is being used in the body. Cancer cells show up brighter in the picture because they take up more glucose than normal cells do.
Bone scan: A procedure to check if there are rapidly dividing cells, such as cancer cells, in the bone. A very small amount of radioactive material is injected into a vein and travels through the bloodstream. The radioactive material collects in the bones with cancer and is detected by a scanner.
Pulmonary function test (PFT): A test to see how well the lungs are working. It measures how much air the lungs can hold and how quickly air moves into and out of the lungs. It also measures how much oxygen is used and how much carbon dioxide is given off during breathing. This is also called lung function test.
Tissue. The cancer spreads from where it began by growing into nearby areas.
Lymph system. The cancer spreads from where it began by getting into the lymph system. The cancer travels through the lymph vessels to other parts of the body.
Blood. The cancer spreads from where it began by getting into the blood. The cancer travels through the blood vessels to other parts of the body.
Cancer may spread from where it began to other parts of the body.
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.
Lymph system. The cancer gets into the lymph system, travels through the lymph vessels, and forms a tumor (metastatic tumor) in another part of the body.
Blood. The cancer gets into the blood, travels through the blood vessels, and forms a tumor (metastatic tumor) in another part of the body.
The metastatic tumor is the same type of cancer as the primary tumor. For example, if non-small cell lung cancer spreads to the brain, the cancer cells in the brain are actually lung cancer cells. The disease is metastatic lung cancer, not brain cancer.
metastasis: how cancer spreads
Many cancer deaths are caused when cancer moves from the original tumor and spreads to other tissues and organs. This is called metastatic cancer. This animation shows how cancer cells travel from the place in the body where they first formed to other parts of the body.
The following stages are used for non-small cell lung cancer:
The tumor is larger than 4 centimeters but not larger than 5 centimeters. Cancer has not spread to the lymph nodes and one or more of the following may be found:
Cancer has spread to the main bronchus, but has not spread to the carina.
Cancer has spread to the innermost layer of the membrane that covers the lung.
Part of the lung or the whole lung has collapsed or has developed pneumonitis.
The tumor is 5 centimeters or smaller and cancer has spread to lymph nodes on the same side of the chest as the primary tumor. The lymph nodes with cancer are in the lung or near the bronchus. Also, one or more of the following may be found:
Cancer has spread to the main bronchus, but has not spread to the carina.
Cancer has spread to the innermost layer of the membrane that covers the lung.
Part of the lung or the whole lung has collapsed or has developed pneumonitis.
or
Cancer has not spread to the lymph nodes and one or more of the following is found:
The tumor is larger than 5 centimeters but not larger than 7 centimeters.
There are one or more separate tumors in the same lobe of the lung as the primary tumor.
Cancer has spread to any of the following:
The membrane that lines the inside of the chest wall.
Outer layer of tissue of the sac around the heart.
Stage III
Stage III is divided into stages IIIA, IIIB, and IIIC.
Stage IIIA: The tumor is 5 centimeters or smaller and cancer has spread to lymph nodes on the same side of the chest as the primary tumor. The lymph nodes with cancer are around the trachea or where the trachea divides into the bronchi. Also, one or more of the following may be found:
Cancer has spread to the main bronchus, but has not spread to the carina.
Cancer has spread to the innermost layer of the membrane that covers the lung.
Part of the lung or the whole lung has collapsed or has developed pneumonitis.
or
Cancer has spread to lymph nodes on the same side of the chest as the primary tumor. The lymph nodes with cancer are in the lung or near the bronchus. Also, one or more of the following is found:
The tumor is larger than 5 centimeters but not larger than 7 centimeters.
There are one or more separate tumors in the same lobe of the lung as the primary tumor.
Cancer has spread to any of the following:
The membrane that lines the inside of the chest wall.
Outer layer of tissue of the sac around the heart.
or
Cancer may have spread to lymph nodes on the same side of the chest as the primary tumor. The lymph nodes with cancer are in the lung or near the bronchus. Also, one or more of the following is found:
The tumor is larger than 7 centimeters.
There are one or more separate tumors in a different lobe of the lung with the primary tumor.
The tumor is any size and cancer has spread to any of the following:
Stage IIIB: The tumor is 5 centimeters or smaller and cancer has spread to lymph nodes above the collarbone on the same side of the chest as the primary tumor or to any lymph nodes on the opposite side of the chest as the primary tumor. Also, one or more of the following may be found:
Cancer has spread to the main bronchus, but has not spread to the carina.
Cancer has spread to the innermost layer of the membrane that covers the lung.
Part of the lung or the whole lung has collapsed or has developed pneumonitis.
or
The tumor may be any size and cancer has spread to lymph nodes on the same side of the chest as the primary tumor. The lymph nodes with cancer are around the tracheaor where the trachea divides into the bronchi. Also, one or more of the following is found:
There are one or more separate tumors in the same lobe or a different lobe of the lung with the primary tumor.
Cancer has spread to any of the following:
The membrane that lines the inside of the chest wall.
Stage IIIC: The tumor may be any size and cancer has spread to lymph nodes above the collarbone on the same side of the chest as the primary tumor or to any lymph nodes on the opposite side of the chest as the primary tumor. Also, one or more of the following is found:
There are one or more separate tumors in the same lobe or a different lobe of the lung with the primary tumor.
In stage IVA, the tumor may be any size and cancer may have spread to the lymph nodes. One or more of the following is found:
There are one or more tumors in the lung that does not have the primary tumor.
Cancer is found in fluid around the lungs or the heart.
Cancer has spread to one place in an organ not near the lung, such as the brain, liver, adrenal gland, kidney, bone, sac around the heart, or to a lymph node that is not near the lung.
In stage IVB, cancer has spread to multiple places in one or more organs that are not near the lung.
There are different types of treatment for patients with non-small cell lung cancer.
Ten types of standard treatment are used:
Surgery
Radiation therapy
Chemotherapy
Targeted therapy
Immunotherapy
Laser therapy
Photodynamic therapy (PDT)
Cryosurgery
Electrocautery
Watchful waiting
New types of treatment are being tested in clinical trials.
Chemoprevention
Radiosensitizers
New combinations
Treatment for non-small cell lung cancer may cause side effects.
Patients may want to think about taking part in a clinical trial.
Patients can enter clinical trials before, during, or after starting their cancer treatment.
Follow-up tests may be needed.
There are different types of treatment for patients with non-small cell lung cancer.
Different types of treatments are available for patients with non-small cell lung 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.
Ten types of standard treatment are used:
Surgery
Four types of surgery are used to treat lung cancer:
Wedge resection: Surgery to remove a tumor and some of the normal tissue around it. When a slightly larger amount of tissue is taken, it is called a segmental resection.ENLARGEWedge resection of the lung. Part of the lung lobe containing the cancer and a small amount of healthy tissue around it is removed.
Lobectomy: Surgery to remove a whole lobe (section) of the lung.ENLARGELobectomy. A lobe of the lung is removed.
Pneumonectomy: Surgery to remove one whole lung.ENLARGEPneumonectomy. The whole lung is removed.
After 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.
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