martes, 30 de julio de 2019

Adult Non-Hodgkin Lymphoma Treatment - National Cancer Institute

Adult Non-Hodgkin Lymphoma Treatment - National Cancer Institute

National Cancer Institute

Adult Non-Hodgkin Lymphoma Treatment (PDQ®)–Patient Version

General Information About Adult Non-Hodgkin Lymphoma

KEY POINTS

  • Adult non-Hodgkin lymphoma is a disease in which malignant (cancer) cells form in the lymph system.
  • The major types of lymphoma are Hodgkin lymphoma and non-Hodgkin lymphoma.
  • Non-Hodgkin lymphoma can be indolent or aggressive.
  • Age, gender, and a weakened immune system can affect the risk of adult non-Hodgkin lymphoma.
  • Signs and symptoms of adult non-Hodgkin lymphoma include swelling in the lymph nodes, fever, night sweats, weight loss, and fatigue.
  • Tests that examine the lymph system and other parts of the body are used to help detect (find) and diagnose adult non-Hodgkin lymphoma.
  • Certain factors affect prognosis (chance of recovery) and treatment options.

Adult non-Hodgkin lymphoma is a disease in which malignant (cancer) cells form in the lymph system.

Non-Hodgkin lymphoma is a type of cancer that forms in the lymph system. The lymph system is part of the immune system. It helps protect the body from infection and disease.
The lymph system is made up of the following:
  • Lymph: Colorless, watery fluid that travels through the lymph vessels and carries lymphocytes (white blood cells). There are three types of lymphocytes:
  • Lymph vessels: A network of thin tubes that collect lymph from different parts of the body and return it to the bloodstream.
  • Lymph nodes: Small, bean-shaped structures that filter lymph and store white blood cells that help fight infection and disease. Lymph nodes are found along a network of lymph vessels throughout the body. Groups of lymph nodes are found in the neck, underarm, mediastinumabdomenpelvis, and groin.
  • Spleen: An organ that makes lymphocytes, stores red blood cells and lymphocytes, filters the blood, and destroys old blood cells. The spleen is on the left side of the abdomen near the stomach.
  • Thymus: An organ in which T lymphocytes mature and multiply. The thymus is in the chest behind the breastbone.
  • Tonsils: Two small masses of lymph tissue at the back of the throat. There is one tonsil on each side of the throat.
  • Bone marrow: The soft, spongy tissue in the center of certain bones, such as the hip bone and breastbone. White blood cells, red blood cells, and platelets are made in the bone marrow.
ENLARGELymph system; drawing shows the lymph vessels and lymph organs including the lymph nodes, tonsils, thymus, spleen, and bone marrow.  One inset shows the inside structure of a lymph node and the attached lymph vessels with arrows showing how the lymph (clear fluid) moves into and out of the lymph node. Another inset shows a close up of bone marrow with blood cells.
Anatomy of the lymph system, showing the lymph vessels and lymph organs including lymph nodes, tonsils, thymus, spleen, and bone marrow. Lymph (clear fluid) and lymphocytes travel through the lymph vessels and into the lymph nodes where the lymphocytes destroy harmful substances. The lymph enters the blood through a large vein near the heart.
Lymph tissue is also found in other parts of the body such as the stomach, thyroid gland, brain, and skin. Cancer can spread to the liver and lungs.
Non-Hodgkin lymphoma during pregnancy is rare. Non-Hodgkin lymphoma in pregnant women is the same as the disease in nonpregnant women of childbearing age. However, treatment is different for pregnant women. This summary includes information on the treatment of non-Hodgkin lymphoma during pregnancy (see the Treatment Options for Non-Hodgkin Lymphoma During Pregnancy section for more information).
Non-Hodgkin lymphoma can occur in both adults and children. Treatment for adults is different than treatment for children. (See the PDQ summary on Childhood Non-Hodgkin Lymphoma Treatment for more information.)

The major types of lymphoma are Hodgkin lymphoma and non-Hodgkin lymphoma.

Lymphomas are divided into two general types: Hodgkin lymphoma and non-Hodgkin lymphoma. This summary is about the treatment of adult non-Hodgkin lymphoma.
For information about certain types of lymphoma, see the following PDQ summaries:

Non-Hodgkin lymphoma can be indolent or aggressive.

Non-Hodgkin lymphoma grows and spreads at different rates and can be indolent or aggressiveIndolent lymphoma tends to grow and spread slowly, and has few signs and symptomsAggressive lymphoma grows and spreads quickly, and has signs and symptoms that can be severe. The treatments for indolent and aggressive lymphoma are different.
This summary is about the following types of non-Hodgkin lymphoma:
Indolent non-Hodgkin lymphomas
  • Follicular lymphoma. Follicular lymphoma is the most common type of indolent non-Hodgkin lymphoma. It is a very slow-growing type of non-Hodgkin lymphoma that begins in B lymphocytes. It affects the lymph nodes and may spread to the bone marrow or spleen. Most patients with follicular lymphoma are age 50 years and older when they are diagnosed. Follicular lymphoma may go away without treatment. The patient is closely watched for signs or symptoms that the disease has come back. Treatment is needed if signs or symptoms occur after the cancer disappeared or after initial cancer treatment. Sometimes follicular lymphoma can become a more aggressive type of lymphoma, such as diffuse large B-cell lymphoma.
  • Lymphoplasmacytic lymphoma. In most cases of lymphoplasmacytic lymphoma, B lymphocytes that are turning into plasma cells make large amounts of a protein called monoclonal immunoglobulin M (IgM) antibody. High levels of IgM antibody in the blood cause the blood plasma to thicken. This may cause signs or symptoms such as trouble seeing or hearing, heart problems, shortness of breath, headache, dizziness, and numbness or tingling of the hands and feet. Sometimes there are no signs or symptoms of lymphoplasmacytic lymphoma. It may be found when a blood test is done for another reason. Lymphoplasmacytic lymphoma often spreads to the bone marrow, lymph nodes, and spleen. It is also called Waldenström macroglobulinemia.
  • Marginal zone lymphoma. This type of non-Hodgkin lymphoma begins in B lymphocytes in a part of lymph tissue called the marginal zone. There are five different types of marginal zone lymphoma. They are grouped by the type of tissue where the lymphoma formed:
    • Nodal marginal zone lymphoma. Nodal marginal zone lymphoma forms in lymph nodes. This type of non-Hodgkin lymphoma is rare. It is also called monocytoid B-cell lymphoma.
    • Gastric mucosa-associated lymphoid tissue (MALT) lymphoma. Gastric MALT lymphoma usually begins in the stomach. This type of marginal zone lymphoma forms in cells in the mucosa that help make antibodies. Patients with gastric MALT lymphoma may also have Helicobacter gastritis or an autoimmune disease, such as Hashimoto thyroiditis or Sjögren syndrome.
    • Extragastric MALT lymphoma. Extragastric MALT lymphoma begins outside of the stomach in almost every part of the body including other parts of the gastrointestinal tractsalivary glands, thyroid, lung, skin, and around the eye. This type of marginal zone lymphoma forms in cells in the mucosa that help make antibodies. Extragastric MALT lymphoma may come back many years after treatment.
    • Mediterranean abdominal lymphoma. This is a type of MALT lymphoma that occurs in young adults in eastern Mediterranean countries. It often forms in the abdomen and patients may also be infected with bacteria called Campylobacter jejuni. This type of lymphoma is also called immunoproliferative small intestinal disease.
    • Splenic marginal zone lymphoma. This type of marginal zone lymphoma begins in the spleen and may spread to the peripheral blood and bone marrow. The most common sign of this type of splenic marginal zone lymphoma is a spleen that is larger than normal.
  • Primary cutaneous anaplastic large cell lymphoma. This type of non-Hodgkin lymphoma is in the skin only. It can be a benign (not cancer) nodule that may go away on its own or it can spread to many places on the skin and need treatment.
Aggressive non-Hodgkin lymphomas
  • Diffuse large B-cell lymphoma. Diffuse large B-cell lymphoma is the most common type of non-Hodgkin lymphoma. It grows quickly in the lymph nodes and often the spleen, liver, bone marrow, or other organs are also affected. Signs and symptoms of diffuse large B-cell lymphoma may include feverrecurring night sweats, and weight loss. These are also called B symptoms.
    Primary mediastinal large B-cell lymphoma is a type of diffuse large B-cell lymphoma.
    • Primary mediastinal large B-cell lymphoma. This type of non-Hodgkin lymphoma is marked by the overgrowth of fibrous (scar-like) lymph tissue. A tumormost often forms behind the breastbone. It may press on the airways and cause coughing and trouble breathing. Most patients with primary mediastinal large B-cell lymphoma are women who are age 30 to 40 years.
  • Follicular large cell lymphoma, stage III. Follicular large cell lymphoma, stage III, is a very rare type of non-Hodgkin lymphoma. It is more like diffuse large B-cell lymphoma than other types of follicular lymphoma.
  • Anaplastic large cell lymphoma. Anaplastic large cell lymphoma is a type of non-Hodgkin lymphoma that usually begins in T lymphocytes. The cancer cells also have a marker called CD30 on the surface of the cell.
    There are two types of anaplastic large cell lymphoma:
    • Cutaneous anaplastic large cell lymphoma. This type of anaplastic large cell lymphoma mostly affects the skin, but other parts of the body may also be affected. Signs of cutaneous anaplastic large cell lymphoma include one or more bumps or ulcers on the skin.
    • Systemic anaplastic large cell lymphoma. This type of anaplastic large cell lymphoma begins in the lymph nodes and may affect other parts of the body. Patients may have a lot of anaplastic lymphoma kinase (ALK) protein inside the lymphoma cells. These patients have a better prognosis than patients who do not have extra ALK protein. Systemic anaplastic large cell lymphoma is more common in children than adults. (See the PDQ summary on Childhood Non-Hodgkin Lymphoma Treatment for more information.)
  • Extranodal NK-/T-cell lymphoma. Extranodal NK-/T-cell lymphoma usually begins in the area around the nose. It may also affect the paranasal sinus (hollow spaces in the bones around the nose), roof of the mouth, trachea, skin, stomach, and intestines. Most cases of extranodal NK-/T-cell lymphoma have Epstein-Barr virus in the tumor cells. Sometimes hemophagocytic syndrome occurs (a serious condition in which there are too many active histiocytes and T cells that cause severe inflammation in the body). Treatment to suppress the immune system is needed. This type of non-Hodgkin lymphoma is not common in the United States.
  • Lymphomatoid granulomatosis. Lymphomatoid granulomatosis mostly affects the lungs. It may also affect the paranasal sinuses (hollow spaces in the bones around the nose), skin, kidneys, and central nervous system. In lymphomatoid granulomatosis, cancer invades the blood vessels and kills tissue. Because the cancer may spread to the brain, intrathecal chemotherapy or radiation therapy to the brain is given.
  • Angioimmunoblastic T-cell lymphoma. This type of non-Hodgkin lymphoma begins in T cells. Swollen lymph nodes are a common sign. Other signs may include a skin rash, fever, weight loss, or night sweats. There may also be high levels of gamma globulin (antibodies) in the blood. Patients may also have opportunistic infections because their immune systems are weakened.
  • Peripheral T-cell lymphoma. Peripheral T-cell lymphoma begins in mature T lymphocytes. This type of T lymphocyte matures in the thymus gland and travels to other lymphatic sites in the body such as the lymph nodes, bone marrow, and spleen. There are three subtypes of peripheral T-cell lymphoma:
    • Hepatosplenic T-cell lymphoma. This is an uncommon type of peripheral T-cell lymphoma that occurs mostly in young men. It begins in the liver and spleen and the cancer cells also have a T-cell receptor called gamma/delta on the surface of the cell.
    • Subcutaneous panniculitis-like T-cell lymphoma. Subcutaneous panniculitis-like T-cell lymphoma begins in the skin or mucosa. It may occur with hemophagocytic syndrome (a serious condition in which there are too many active histiocytes and T cells that cause severe inflammation in the body). Treatment to suppress the immune system is needed.
    • Enteropathy-type intestinal T-cell lymphoma. This type of peripheral T-cell lymphoma occurs in the small bowel of patients with untreated celiac disease (an immune response to gluten that causes malnutrition). Patients who are diagnosed with celiac disease in childhood and stay on a gluten-free diet rarely develop enteropathy-type intestinal T-cell lymphoma.
  • Intravascular large B-cell lymphoma. This type of non-Hodgkin lymphoma affects blood vessels, especially the small blood vessels in the brain, kidney, lung, and skin. Signs and symptoms of intravascular large B-cell lymphoma are caused by blocked blood vessels. It is also called intravascular lymphomatosis.
  • Burkitt lymphoma. Burkitt lymphoma is a type of B-cell non-Hodgkin lymphoma that grows and spreads very quickly. It may affect the jaw, bones of the face, bowel, kidneys, ovaries, or other organs. There are three main types of Burkitt lymphoma (endemicsporadic, and immunodeficiency related). Endemic Burkitt lymphoma commonly occurs in Africa and is linked to the Epstein-Barr virus, and sporadic Burkitt lymphoma occurs throughout the world. Immunodeficiency-related Burkitt lymphoma is most often seen in patients who have AIDS. Burkitt lymphoma may spread to the brain and spinal cordand treatment to prevent its spread may be given. Burkitt lymphoma occurs most often in children and young adults (See the PDQ summary on Childhood Non-Hodgkin Lymphoma Treatment for more information.) Burkitt lymphoma is also called diffuse small noncleaved-cell lymphoma.
  • Lymphoblastic lymphoma. Lymphoblastic lymphoma may begin in T cells or B cells, but it usually begins in T cells. In this type of non-Hodgkin lymphoma, there are too many lymphoblasts (immature white blood cells) in the lymph nodes and the thymus gland. These lymphoblasts may spread to other places in the body, such as the bone marrow, brain, and spinal cord. Lymphoblastic lymphoma is most common in teenagers and young adults. It is a lot like acute lymphoblastic leukemia (lymphoblasts are mostly found in the bone marrow and blood). (See the PDQ summary on Adult Acute Lymphoblastic Leukemia Treatment for more information.)
  • Adult T-cell leukemia/lymphoma. Adult T-cell leukemia/lymphoma is caused by the human T-cell leukemia virus type 1 (HTLV-1). Signs include bone and skin lesions, high blood calcium levels, and lymph nodes, spleen, and liver that are larger than normal.
  • Mantle cell lymphoma. Mantle cell lymphoma is a type of B-cell non-Hodgkin lymphoma that usually occurs in middle-aged or older adults. It begins in the lymph nodes and spreads to the spleen, bone marrow, blood, and sometimes the esophagus, stomach, and intestines. Patients with mantle cell lymphoma have too much of a protein called cyclin-D1or a certain gene change in the lymphoma cells. In some patients who do not have signs or symptoms of lymphoma delaying the start of treatment does not affect the prognosis.
  • Posttransplantation lymphoproliferative disorder. This disease occurs in patients who have had a heart, lung, liver, kidney, or pancreas transplant and need lifelong immunosuppressive therapy. Most posttransplant lymphoproliferative disorders affect the B cells and have Epstein-Barr virus in the cells. Lymphoproliferative disorders are often treated like cancer.
  • True histiocytic lymphoma. This is a rare, very aggressive type of lymphoma. It is not known whether it begins in B cells or T cells. It does not respond well to treatment with standard chemotherapy.
  • Primary effusion lymphoma. Primary effusion lymphoma begins in B cells that are found in an area where there is a large build-up of fluid, such as the areas between the lining of the lung and chest wall (pleural effusion), the sac around the heart and the heart (pericardial effusion), or in the abdominal cavity. There is usually no tumor that can be seen. This type of lymphoma often occurs in patients who have AIDS.
  • Plasmablastic lymphoma. Plasmablastic lymphoma is a type of large B-cell non-Hodgkin lymphoma that is very aggressive. It is most often seen in patients with HIVinfection.

Age, gender, and a weakened immune system can affect the risk of adult non-Hodgkin lymphoma.

Anything that increases your risk 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 doctor if you think you may be at risk.
These and other risk factors may increase the risk of certain types of adult non-Hodgkin lymphoma:

Signs and symptoms of adult non-Hodgkin lymphoma include swelling in the lymph nodes, fever, night sweats, weight loss, and fatigue.

These signs and symptoms may be caused by adult non-Hodgkin lymphoma or by other conditions. Check with your doctor if you have any of the following:
  • Swelling in the lymph nodes in the neck, underarm, groin, or stomach.
  • Fever for no known reason.
  • Recurring night sweats.
  • Feeling very tired.
  • Weight loss for no known reason.
  • Skin rash or itchy skin.
  • Pain in the chest, abdomen, or bones for no known reason.
When fever, night sweats, and weight loss occur together, this group of symptoms is called B symptoms.
Other signs and symptoms of adult non-Hodgkin lymphoma may occur and depend on the following:
  • Where the cancer forms in the body.
  • The size of the tumor.
  • How fast the tumor grows.

Tests that examine the lymph system and other parts of the body are used to help detect (find) and diagnose adult non-Hodgkin lymphoma.

The following tests and procedures may be used:
  • Physical exam and history: An exam of the body to check general signs of health, including checking for signs of disease, such as lumps or anything else that seems unusual. A history of the patient’s health, including fever, night sweats, and weight loss, health habits, and past illnesses and treatments will also be taken.
  • Complete blood count (CBC): A procedure in which a sample of blood is drawn and checked for the following:
    • The number of red blood cells, white blood cells, and platelets.
    • The amount of hemoglobin (the protein that carries oxygen) in the red blood cells.
    • The portion of the sample made up of red blood cells.
    ENLARGEComplete blood count (CBC); left panel shows blood being drawn from a vein on the inside of the elbow using a tube attached to a syringe; right panel shows a laboratory test tube with blood cells separated into layers: plasma, white blood cells, platelets, and red blood cells.
    Complete blood count (CBC). Blood is collected by inserting a needle into a vein and allowing the blood to flow into a tube. The blood sample is sent to the laboratory and the red blood cells, white blood cells, and platelets are counted. The CBC is used to test for, diagnose, and monitor many different conditions.
  • Blood chemistry studies: A procedure in which a blood sample is checked to measure the amounts of certain substances released into the blood by organs and tissues in the body. An unusual (higher or lower than normal) amount of a substance can be a sign of disease.
  • LDH test: A procedure in which a blood sample is checked to measure the amount of lactic dehydrogenase. An increased amount of LDH in the blood may be a sign of tissue damage, lymphoma, or other diseases.
  • Hepatitis B and hepatitis C test: A procedure in which a sample of blood is checked to measure the amounts of hepatitis B virus-specific antigens and/or antibodies and the amounts of hepatitis C virus-specific antibodies. These antigens or antibodies are called markers. Different markers or combinations of markers are used to determine whether a patient has a hepatitis B or C infection, has had a prior infection or vaccination, or is susceptible to infection.
  • HIV test: A test to measure the level of HIV antibodies in a sample of blood. Antibodies are made by the body when it is invaded by a foreign substance. A high level of HIV antibodies may mean the body has been infected with HIV.
  • CT scan (CAT scan): A procedure that makes a series of detailed pictures of areas inside the body, such as the neck, chest, abdomen, pelvis, 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 radioactive glucose (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.
  • Bone marrow aspiration and biopsy: The removal of bone marrow and a small piece of bone by inserting a needle into the hipbone or breastbone. A pathologist views the bone marrow and bone under a microscope to look for signs of cancer.
    ENLARGEBone marrow aspiration and biopsy; drawing shows a patient lying face down on a table and a bone marrow needle being inserted into the hip bone. Inset shows the bone marrow needle being inserted through the skin into the bone marrow of the hip bone.
    Bone marrow aspiration and biopsy. After a small area of skin is numbed, a bone marrow needle is inserted into the patient’s hip bone. Samples of blood, bone, and bone marrow are removed for examination under a microscope.
  • Lymph node biopsy: The removal of all or part of a lymph node. A pathologist views the tissue under a microscope to check for cancer cells. One of the following types of biopsies may be done:
If cancer is found, the following tests may be done to study the cancer cells:
  • 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.
  • Cytogenetic analysis: A laboratory test in which cells in a sample of tissue are viewed under a microscope to look for certain changes in the chromosomes.
  • FISH (fluorescence in situ hybridization): A laboratory test used to look at genes or chromosomes in cells and tissues. Pieces of DNA that contain a fluorescent dye are made in the laboratory and added to cells or tissues on a glass slide. When these pieces of DNA attach to certain genes or areas of chromosomes on the slide, they light up when viewed under a microscope with a special light. This type of test is used to look for certain genetic markers.
  • Immunophenotyping: A process used to identify cells, based on the types of antigens or markers on the surface of the cell. This process is used to diagnose specific types of leukemia and lymphoma by comparing the cancer cells to normal cells of the immune system.
Other tests and procedures may be done depending on the signs and symptoms seen and where the cancer forms in the body.

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 type of non-Hodgkin lymphoma.
  • The amount of lactate dehydrogenase (LDH) in the blood.
  • Whether there are certain changes in the genes.
  • The patient’s age and general health.
  • Whether the lymphoma has just been diagnosed or has recurred (come back).
For non-Hodgkin lymphoma during pregnancy, the treatment options also depend on:
  • The wishes of the patient.
  • Which trimester of pregnancy the patient is in.
  • Whether the baby can be delivered early.
Some types of non-Hodgkin lymphoma spread more quickly than others do. Most non-Hodgkin lymphomas that occur during pregnancy are aggressive. Delaying treatment of aggressive lymphoma until after the baby is born may lessen the mother's chance of survival. Immediate treatment is often recommended, even during pregnancy.

Stages of Adult Non-Hodgkin Lymphoma

KEY POINTS

  • After adult non-Hodgkin lymphoma has been diagnosed, tests are done to find out if cancer cells have spread within the lymph system or to other parts of the body.
  • There are three ways that cancer spreads in the body.
  • The following stages are used for adult non-Hodgkin lymphoma:
    • Stage I
    • Stage II
    • Stage III
    • Stage IV
  • Adult non-Hodgkin lymphomas may be grouped for treatment according to whether the cancer is indolent or aggressive and whether affected lymph nodes are next to each other in the body.

After adult non-Hodgkin lymphoma has been diagnosed, tests are done to find out if cancer cells have spread within the lymph system or to other parts of the body.

The process used to find out the type of cancer and if cancer cells have spread within the lymph system 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 of the disease in order to plan treatment. The results of the tests and proceduresdone to diagnose non-Hodgkin lymphoma are used to help make decisions about treatment.
The following tests and procedures may also be used in the staging process:
  • MRI (magnetic resonance imaging) with gadolinium: 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 and spinal cord. A substance called gadolinium is injected into the patient through a vein. The gadolinium collects around the cancer cells so they show up brighter in the picture. This procedure is also called nuclear magnetic resonance imaging (NMRI).
  • Lumbar puncture: A procedure used to collect cerebrospinal fluid (CSF) from the spinal column. This is done by placing a needle between two bones in the spine and into the CSF around the spinal cord and removing a sample of the fluid. The sample of CSF is checked under a microscope for signs that the cancer has spread to the brain and spinal cord. This procedure is also called an LP or spinal tap.
    ENLARGELumbar puncture; drawing shows a patient lying in a curled position on a table and a spinal needle (a long, thin needle) being inserted into the lower back. Inset shows a close-up of the spinal needle inserted into the cerebrospinal fluid (CSF) in the lower part of the spinal column.
    Lumbar puncture. A patient lies in a curled position on a table. After a small area on the lower back is numbed, a spinal needle (a long, thin needle) is inserted into the lower part of the spinal column to remove cerebrospinal fluid (CSF, shown in blue). The fluid may be sent to a laboratory for testing.
For pregnant women with non-Hodgkin lymphoma, staging tests and procedures that protect the baby from the harms of radiation are used. These tests and procedures include MRI, bone marrow aspiration and biopsy, lumbar puncture, and ultrasound. An ultrasound exam is a procedure in which high-energy sound waves (ultrasound) are bounced off internal tissues or organs and make echoes. The echoes form a picture of body tissues called a sonogram.

There are three ways that cancer spreads in the body.

Cancer can spread through tissue, the lymph system, and the blood:
  • 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.

The following stages are used for adult non-Hodgkin lymphoma:

Stage I

ENLARGEStage I adult lymphoma; drawing shows cancer in one lymph node group  and in the spleen. Also shown are the Waldeyer’s ring and the thymus. An inset shows a lymph node with a lymph vessel, an artery, and a vein. Cancer cells are shown in the lymph node.
Stage I adult lymphoma. Cancer is found in one or more lymph nodes in a group of lymph nodes or, in rare cases, cancer is found in the Waldeyer’s ring, thymus, or spleen. In stage IE (not shown), cancer has spread to one area outside the lymph system.
Stage I adult non-Hodgkin lymphoma is divided into stages I and IE.
In stage I, cancer is found in one of the following places in the lymph system:
In stage IE, cancer is found in one area outside the lymph system.

Stage II

Stage II adult non-Hodgkin lymphoma is divided into stages II and IIE.
  • In stage II, cancer is found in two or more groups of lymph nodes that are either above the diaphragm or below the diaphragm.
    ENLARGEStage II adult lymphoma; drawing shows cancer in two lymph node groups above the diaphragm and below the diaphragm. An inset shows a lymph node with a lymph vessel, an artery, and a vein. Cancer cells are shown in the lymph node.
    Stage II adult lymphoma. Cancer is found in two or more groups of lymph nodes that are either above the diaphragm or below the diaphragm.
  • In stage IIE, cancer has spread from a group of lymph nodes to a nearby area that is outside the lymph system. Cancer may have spread to other lymph node groups on the same side of the diaphragm.
    ENLARGEStage IIE adult lymphoma; drawing shows cancer that has spread from a group of lymph nodes to a nearby area. Also shown is a lung and the diaphragm.   An inset shows a lymph node with a lymph vessel, an artery, and a vein. Cancer cells are shown in the lymph node.
    Stage IIE adult lymphoma. Cancer has spread from a group of lymph nodes to a nearby area that is outside the lymph system. Cancer may have spread to other lymph node groups on the same side of the diaphragm.
In stage II, the term bulky disease refers to a larger tumor mass. The size of the tumor mass that is referred to as bulky disease varies based on the type of lymphoma.

Stage III

ENLARGEStage III adult lymphoma; drawing shows the right and left sides of the body. The right side of the body shows cancer in a group of lymph nodes above the diaphragm and below the diaphragm. The left side of the body shows cancer in a group of lymph nodes above the diaphragm and cancer in the spleen.
Stage III adult lymphoma. Cancer is found in groups of lymph nodes both above and below the diaphragm; or in a group of lymph nodes above the diaphragm and in the spleen.

Stage IV

ENLARGEStage IV adult lymphoma; drawing shows four panels: (a) the top left panel shows cancer in the liver; (b) the top right panel shows cancer in the left lung and in two groups of lymph nodes below the diaphragm; (c) the bottom left panel shows cancer in the left lung and in a group of lymph nodes above the diaphragm and below the diaphragm; and (d) the bottom right panel shows cancer in both lungs, the liver, and the bone marrow (pullout).  Also shown is primary cancer in the lymph nodes and a pullout of the brain with cerebrospinal fluid (in blue).
Stage IV adult lymphoma. Cancer (a) has spread throughout one or more organs outside the lymph system; or (b) is found in two or more groups of lymph nodes that are either above the diaphragm or below the diaphragm and in one organ that is outside the lymph system and not near the affected lymph nodes; or (c) is found in groups of lymph nodes above the diaphragm and below the diaphragm and in any organ that is outside the lymph system; or (d) is found in the liver, bone marrow, more than one place in the lung, or cerebrospinal fluid (CSF). The cancer has not spread directly into the liver, bone marrow, lung, or CSF from nearby lymph nodes.
  • has spread throughout one or more organs outside the lymph system; or
  • is found in two or more groups of lymph nodes that are either above the diaphragm or below the diaphragm and in one organ that is outside the lymph system and not near the affected lymph nodes; or
  • is found in groups of lymph nodes both above and below the diaphragm and in any organ that is outside the lymph system; or
  • is found in the liverbone marrow, more than one place in the lung, or cerebrospinal fluid (CSF). The cancer has not spread directly into the liver, bone marrow, lung, or CSF from nearby lymph nodes.

Adult non-Hodgkin lymphomas may be grouped for treatment according to whether the cancer is indolent or aggressive and whether affected lymph nodes are next to each other in the body.

See the General Information section for more information on the types of indolent (slow-growing) and aggressive (fast-growing) non-Hodgkin lymphoma.
Non-Hodgkin lymphoma can also be described as contiguous or noncontiguous:

Recurrent Adult Non-Hodgkin Lymphoma

Recurrent adult non-Hodgkin lymphoma is cancer that has recurred (come back) after it has been treated. The lymphoma may come back in the lymph system or in other parts of the body. Indolent lymphoma may come back as aggressive lymphoma. Aggressive lymphoma may come back as indolent lymphoma.

Treatment Option Overview

KEY POINTS

  • There are different types of treatment for patients with non-Hodgkin lymphoma.
  • Patients with non-Hodgkin lymphoma should have their treatment planned by a team of health care providers who are experts in treating lymphomas.
  • Treatment for adult non-Hodgkin lymphoma may cause side effects.
  • Nine types of standard treatment are used:
    • Radiation therapy
    • Chemotherapy
    • Immunotherapy
    • Targeted therapy
    • Plasmapheresis
    • Watchful waiting
    • Antibiotic therapy
    • Surgery
    • Stem cell transplant
  • New types of treatment are being tested in clinical trials.
    • Vaccine therapy
  • 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-Hodgkin lymphoma.

Different types of treatment are available for patients with non-Hodgkin lymphoma. 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.
For pregnant women with non-Hodgkin lymphoma, treatment is carefully chosen to protect the baby. Treatment decisions are based on the mother’s wishes, the stage of the non-Hodgkin lymphoma, and the age of the baby. The treatment plan may change as the signs and symptoms, cancer, and pregnancy change. Choosing the most appropriate cancer treatment is a decision that ideally involves the patient, family, and health care team.

Patients with non-Hodgkin lymphoma should have their treatment planned by a team of health care providers who are experts in treating lymphomas.

Treatment will be overseen by a medical oncologist, a doctor who specializes in treating cancer, or a hematologist, a doctor who specializes in treating blood cancers. The medical oncologist may refer you to other health care providers who have experience and are experts in treating adult non-Hodgkin lymphoma and who specialize in certain areas of medicine. These may include the following specialists:

Treatment for adult non-Hodgkin lymphoma may cause side effects.

For information about side effects that begin during treatment for cancer, see our Side Effects page.
Side effects from cancer treatment that begin after treatment and continue for months or years are called late effects. Treatment with chemotherapyradiation therapy, or stem cell transplant for non-Hodgkin lymphoma may increase the risk of late effects.
Late effects of cancer treatment may include the following:
Some late effects may be treated or controlled. It is important to talk with your doctor about the effects cancer treatment can have on you. Regular follow-up to check for late effects is important.

Nine types of standard treatment are used:

Radiation therapy

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:
Total-body irradiation is a type of external radiation therapy that is given to the entire body. It may be given before a stem cell transplant.
The way the radiation therapy is given depends on the type and stage of the cancer being treated. External radiation therapy is used to treat adult non-Hodgkin lymphoma, and may also be used as palliative therapy to relieve symptoms and improve quality of life.
For pregnant women with non-Hodgkin lymphoma, radiation therapy should be given after delivery, if possible, to avoid any risk to the baby. If treatment is needed right away, pregnant women may decide to continue the pregnancy and receive radiation therapy. However, lead used to shield the baby may not protect it from scattered radiation that could possibly cause cancer in the future.

Chemotherapy

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 (intrathecal chemotherapy), an organ, or a body cavitysuch as the abdomen, the drugs mainly affect cancer cells in those areas (regional chemotherapy). Combination chemotherapy is treatment using two or more anticancer drugs. Steroid drugs may be added, to lessen inflammation and lower the body's immune response.
The way the chemotherapy is given depends on the type and stage of the cancer being treated.
Intrathecal chemotherapy may also be used in the treatment of lymphoma that first forms in the testicles or sinuses (hollow areas) around the nose, diffuse large B-cell lymphomaBurkitt lymphomalymphoblastic lymphoma, and some aggressive T-cell lymphomas. It is given to lessen the chance that lymphoma cells will spread to the brain and spinal cord. This is called CNS prophylaxis.
ENLARGEIntrathecal chemotherapy; drawing shows the cerebrospinal fluid (CSF) in the brain and spinal cord, and an Ommaya reservoir (a dome-shaped container that is placed under the scalp during surgery; it holds the drugs as they flow through a small tube into the brain). Top section shows a syringe and needle injecting anticancer drugs into the Ommaya reservoir. Bottom section shows a syringe and needle injecting anticancer drugs directly into the cerebrospinal fluid in the lower part of the spinal column.
Intrathecal chemotherapy. Anticancer drugs are injected into the intrathecal space, which is the space that holds the cerebrospinal fluid (CSF, shown in blue). There are two different ways to do this. One way, shown in the top part of the figure, is to inject the drugs into an Ommaya reservoir (a dome-shaped container that is placed under the scalp during surgery; it holds the drugs as they flow through a small tube into the brain). The other way, shown in the bottom part of the figure, is to inject the drugs directly into the CSF in the lower part of the spinal column, after a small area on the lower back is numbed.
In pregnant women, the baby is exposed to chemotherapy when the mother is treated, and some anticancer drugs cause birth defects. Because anticancer drugs are passed to the baby through the mother, both must be watched closely when chemotherapy is given.
See Drugs Approved for Non-Hodgkin Lymphoma for more information.

Immunotherapy

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. Immunomodulators and CAR T-cell therapy are types of immunotherapy.
  • ImmunomodulatorsLenalidomide is an immunomodulator used to treat adult non-Hodgkin lymphoma.
  • CAR T-cell therapy: The patient's T cells (a type of immune system cell) are changed so they will attack certain proteins on the surface of cancer cells. T cells are taken from the patient and special receptors are added to their surface in the laboratory. The changed cells are called chimeric antigen receptor (CAR) T cells. The CAR T cells are grown in the laboratory and given to the patient by infusion. The CAR T cells multiply in the patient's blood and attack cancer cells. CAR T-cell therapy is used to treat large B-cell lymphomathat has not responded to treatment.
    ENLARGECAR T-cell therapy; drawing of blood being removed from a vein in a patient’s arm to get T cells. Also shown is a special receptor called a chimeric antigen receptor (CAR) being made in the laboratory; the gene for CAR is inserted into the T cells and then millions of CAR T cells are grown. Drawing also shows the CAR T cells being given to the patient by infusion and binding to antigens on the cancer cells and killing them.
    CAR T-cell therapy. A type of treatment in which a patient’s T cells (a type of immune cell) are changed in the laboratory so they will bind to cancer cells and kill them. Blood from a vein in the patient’s arm flows through a tube to an apheresis machine (not shown), which removes the white blood cells, including the T cells, and sends the rest of the blood back to the patient. Then, the gene for a special receptor called a chimeric antigen receptor (CAR) is inserted into the T cells in the laboratory. Millions of the CAR T cells are grown in the laboratory and then given to the patient by infusion. The CAR T cells are able to bind to an antigen on the cancer cells and kill them.
See Drugs Approved for Non-Hodgkin Lymphoma for more information.

Targeted therapy

Targeted therapy is a type of treatment that uses drugs or other substances to identify and attack specific cancer cells without harming normal cells. Monoclonal antibody therapyproteasome inhibitor therapy, and kinase inhibitor therapy are types of targeted therapy used to treat adult non-Hodgkin lymphoma.
Monoclonal antibody therapy is a cancer treatment that uses antibodies made in the laboratory from a single type of immune system cell. These antibodies can identify substances on cancer cells or normal substances that may help cancer cells grow. The antibodies attach to the substances and kill the cancer cells, block their growth, or keep them from spreading. They may be used alone or to carry drugs, toxins, or radioactive material directly to cancer cells. Rituximab is a monoclonal antibody used to treat many types of non-Hodgkin lymphoma. Obinutuzumab is a monoclonal antibody used to treat follicular lymphoma. Monoclonal antibodies that have been joined to radioactive material are called radiolabeled monoclonal antibodies. Yttrium Y 90-ibritumomab tiuxetan is an example of a radiolabeled monoclonal antibody. Monoclonal antibodies are given by infusion.
Proteasome inhibitor therapy blocks the action of proteasomes in cancer cells. Proteasomes remove proteins no longer needed by the cell. When the proteasomes are blocked, the proteins build up in the cell and may cause the cancer cell to die. Bortezomibis used to decrease how much immunoglobulin M is in the blood after cancer treatment for lymphoplasmacytic lymphoma. It is also being studied to treat relapsed mantle cell lymphoma.
Kinase inhibitor therapy blocks certain proteins, which may help keep lymphoma cells from growing and may kill them. Ibrutinib, a type of Bruton's tyrosine kinase inhibitor therapy, isused to treat lymphoplasmacytic lymphoma and mantle cell lymphoma.
See Drugs Approved for Non-Hodgkin Lymphoma for more information.

Plasmapheresis

If the blood becomes thick with extra antibody proteins and affects circulationplasmapheresis is done to remove extra plasma and antibody proteins from the blood. In this procedure, blood is removed from the patient and sent through a machine that separates the plasma (the liquid part of the blood) from the blood cells. The patient's plasma contains the unneeded antibodies and is not returned to the patient. The normal blood cells are returned to the bloodstream along with donated plasma or a plasma replacement. Plasmapheresis does not keep new antibodies from forming.

Watchful waiting

Watchful waiting is closely monitoring a patient’s condition without giving any treatment until signs or symptoms appear or change.

Antibiotic therapy

Antibiotic therapy is a treatment that uses drugs to treat infections and cancer caused by bacteria and other microorganisms.
See Drugs Approved for Non-Hodgkin Lymphoma for more information.

Surgery

Surgery may be used to remove the lymphoma in certain patients with indolent or aggressive non-Hodgkin lymphoma.
The type of surgery used depends on where the lymphoma formed in the body:
Patients who have a heart, lungliverkidney, or pancreas transplant usually need to take drugs to suppress their immune system for the rest of their lives. Long-term immunosuppression after an organ transplant can cause a certain type of non-Hodgkin lymphoma called post-transplant lymphoproliferative disorder (PLTD).
Small bowel surgery is often needed to diagnose celiac disease in adults who develop a type of T-cell lymphoma.

Stem cell transplant

Stem cell transplant is a method of giving high doses of chemotherapy and/or total-body irradiation and then replacing blood-forming cells destroyed by the cancer treatment.Stem cells (immature blood cells) are removed from the blood or bone marrow of the patient (autologous transplant) or a donor (allogeneic transplant) and are frozen and stored. After the chemotherapy and/or radiation therapy is completed, the stored stem cells are thawed and given back to the patient through an infusion. These reinfused stem cells grow into (and restore) the body’s blood cells.
ENLARGEStem cell transplant; (Panel 1): Drawing of stem cells being removed from a patient or donor. Blood is collected from a vein in the arm and flows through a machine that removes the stem cells; the remaining blood is returned to a vein in the other arm. (Panel 2): Drawing of a health care provider giving a patient treatment to kill blood-forming cells. Chemotherapy is given to the patient through a catheter in the chest. (Panel 3): Drawing of stem cells being given to the patient through a catheter in the chest.
Stem cell transplant. (Step 1): Blood is taken from a vein in the arm of the donor. The patient or another person may be the donor. The blood flows through a machine that removes the stem cells. Then the blood is returned to the donor through a vein in the other arm. (Step 2): The patient receives chemotherapy to kill blood-forming cells. The patient may receive radiation therapy (not shown). (Step 3): The patient receives stem cells through a catheter placed into a blood vessel in the chest.

New types of treatment are being tested in clinical trials.

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.

Vaccine therapy

Vaccine therapy is a cancer treatment that uses a substance or group of substances to stimulate the immune system to find the tumor and kill it.

Patients may want to think about taking part in a clinical trial.

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.

Patients can enter clinical trials before, during, or after starting their cancer treatment.

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.

Follow-up tests may be needed.

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.
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). These tests are sometimes called follow-up tests or check-ups.

Treatment Options for Indolent Non-Hodgkin Lymphoma

For information about the treatments listed below, see the Treatment Option Overviewsection.
Treatment of indolent stage I and indolent, contiguous stage II adult non-Hodgkin lymphoma may include the following:
If the tumor is too large to be treated with radiation therapy, the treatment options for indolent, noncontiguous stage IIIII, or IV adult non-Hodgkin lymphoma will be used.
Treatment of indolent, noncontiguous stage II, III, or IV adult non-Hodgkin lymphoma may include the following:
After initial treatment with the monoclonal antibody rituximab with or without chemotherapy, more treatment with rituximab may be given.
Other treatments for indolent non-Hodgkin lymphoma depend on the type of non-Hodgkin lymphoma. Treatment may include the following:

Treatment Options for Aggressive Non-Hodgkin Lymphoma

For information about the treatments listed below, see the Treatment Option Overviewsection.
Treatment of aggressive stage I and aggressive, contiguous stage II adult non-Hodgkin lymphoma may include the following:
Treatment of aggressive, noncontiguous stage IIIII, or IV adult non-Hodgkin lymphoma may include the following:
  • Monoclonal antibody therapy with combination chemotherapy.
  • Combination chemotherapy.
  • A clinical trial of monoclonal antibody therapy with combination chemotherapy followed by radiation therapy.
Other treatments depend on the type of aggressive non-Hodgkin lymphoma. Treatment may include the following:
For information on the treatment of lymphoblastic lymphoma, see Treatment Options for Lymphoblastic Lymphoma and for information on the treatment of Burkitt lymphoma, see Treatment Options for Burkitt Lymphoma.

Treatment Options for Lymphoblastic Lymphoma

For information about the treatments listed below, see the Treatment Option Overviewsection.
Treatment of adult lymphoblastic lymphoma may include the following:

Treatment Options for Burkitt Lymphoma

For information about the treatments listed below, see the Treatment Option Overviewsection.
Treatment of adult Burkitt lymphoma may include the following:

Treatment Options for Recurrent Non-Hodgkin Lymphoma

For information about the treatments listed below, see the Treatment Option Overviewsection.
Treatment of indolentrecurrent adult non-Hodgkin lymphoma may include the following:
Treatment of aggressive, recurrent adult non-Hodgkin lymphoma may include the following:
  • Chemotherapy with or without stem cell transplant.
  • Monoclonal antibody therapy with or without combination chemotherapy followed by autologous stem cell transplant.
  • Radiation therapy as palliative therapy to relieve symptoms and improve quality of life.
  • Radiolabeled monoclonal antibody therapy.
  • CAR T-cell therapy.
  • For mantle cell lymphoma, treatment may include the following:
    • Bruton's tyrosine kinase inhibitor therapy.
    • Lenalidomide.
    • A clinical trial of lenalidomide with monoclonal antibody therapy.
    • A clinical trial comparing lenalidomide to other therapy.
    • A clinical trial of proteasome inhibitor therapy (bortezomib).
  • A clinical trial of autologous or allogeneic stem cell transplant.
Treatment of indolent lymphoma that comes back as aggressive lymphoma depends on the type of non-Hodgkin lymphoma and may include radiation therapy as palliative therapy to relieve symptoms and improve quality of life. Treatment of aggressive lymphoma that comes back as indolent lymphoma may include chemotherapy.

Treatment Options for Non-Hodgkin Lymphoma During Pregnancy

For information about the treatments listed below, see the Treatment Option Overviewsection.

Indolent Non-Hodgkin Lymphoma During Pregnancy

Women who have indolent (slow-growing) non-Hodgkin lymphoma during pregnancy may be treated with watchful waiting until after they give birth. (See the Treatment Options for Indolent Non-Hodgkin Lymphoma section for more information.)

Aggressive Non-Hodgkin Lymphoma During Pregnancy

Treatment of aggressive non-Hodgkin lymphoma during pregnancy may include the following:
  • Treatment given right away based on the type of non-Hodgkin lymphoma to increase the mother's chance of survival. Treatment may include combination chemotherapyand rituximab.
  • Early delivery of the baby followed by treatment based on the type of non-Hodgkin lymphoma.
  • If in the first trimester of pregnancy, medical oncologists may advise ending the pregnancy so that treatment may begin. Treatment depends on the type of non-Hodgkin lymphoma.

To Learn More About Adult Non-Hodgkin Lymphoma

About This PDQ Summary

About PDQ

Physician Data Query (PDQ) is the National Cancer Institute's (NCI's) comprehensive cancer information database. The PDQ database contains summaries of the latest published information on cancer prevention, detection, genetics, treatment, supportive care, and complementary and alternative medicine. Most summaries come in two versions. The health professional versions have detailed information written in technical language. The patient versions are written in easy-to-understand, nontechnical language. Both versions have cancer information that is accurate and up to date and most versions are also available in Spanish.
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This PDQ cancer information summary has current information about the treatment of adult non-Hodgkin lymphoma. It is meant to inform and help patients, families, and caregivers. It does not give formal guidelines or recommendations for making decisions about health care.

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Editorial Boards write the PDQ cancer information summaries and keep them up to date. These Boards are made up of experts in cancer treatment and other specialties related to cancer. The summaries are reviewed regularly and changes are made when there is new information. The date on each summary ("Updated") is the date of the most recent change.
The information in this patient summary was taken from the health professional version, which is reviewed regularly and updated as needed, by the PDQ Adult Treatment Editorial Board.

Clinical Trial Information

A clinical trial is a study to answer a scientific question, such as whether one treatment is better than another. Trials are based on past studies and what has been learned in the laboratory. Each trial answers certain scientific questions in order to find new and better ways to help cancer patients. During treatment clinical trials, information is collected about the effects of a new treatment and how well it works. If a clinical trial shows that a new treatment is better than one currently being used, the new treatment may become "standard." 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.
Clinical trials can be found online at NCI's website. For more information, call the Cancer Information Service (CIS), NCI's contact center, at 1-800-4-CANCER (1-800-422-6237).

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PDQ® Adult Treatment Editorial Board. PDQ Adult Non-Hodgkin Lymphoma Treatment. Bethesda, MD: National Cancer Institute. Updated <MM/DD/YYYY>. Available at: https://www.cancer.gov/types/lymphoma/patient/adult-nhl-treatment-pdq. Accessed <MM/DD/YYYY>. [PMID: 26389337]
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