Non-Hodgkin's lymphoma, also called non-Hodgkin lymphoma, is cancer that originates in your lymphatic system, the disease-fighting network spread throughout your body. In non-Hodgkin's lymphoma, tumors develop from lymphocytes — a type of white blood cell.
Non-Hodgkin's lymphoma is more common than the other general type of lymphoma — Hodgkin lymphoma.
Many different subtypes of non-Hodgkin's lymphoma exist. The most common non-Hodgkin's lymphoma subtypes include diffuse large B-cell lymphoma and follicular lymphoma.
Non-Hodgkin's lymphoma symptoms may include:
- Swollen lymph nodes in your neck, armpits or groin
- Abdominal pain or swelling
- Chest pain, coughing or trouble breathing
- Night sweats
- Weight loss
When to see a doctor
Make an appointment with your doctor if you have any persistent signs and symptoms that worry you.
Doctors aren't sure what causes non-Hodgkin's lymphoma. Non-Hodgkin's lymphoma occurs when your body produces too many abnormal lymphocytes — a type of white blood cell. Normally, lymphocytes go through a predictable life cycle. Old lymphocytes die, and your body creates new ones to replace them. In non-Hodgkin's lymphoma, your lymphocytes don't die, but continue to grow and divide. This oversupply of lymphocytes crowds into your lymph nodes, causing them to swell.
B cells and T cells
Non-Hodgkin's lymphoma can begin in the:
- B cells. B cells fight infection by producing antibodies that neutralize foreign invaders. Most non-Hodgkin's lymphoma arises from B cells. Subtypes of non-Hodgkin's lymphoma that involve B cells include diffuse large B-cell lymphoma, follicular lymphoma, mantle cell lymphoma and Burkitt lymphoma.
- T cells. T cells are involved in killing foreign invaders directly. Non-Hodgkin's lymphoma occurs less often in T cells. Subtypes of non-Hodgkin's lymphoma that involve T cells include peripheral T-cell lymphoma and cutaneous T-cell lymphoma.
Whether your non-Hodgkin's lymphoma arises from your B cells or T cells helps to determine your treatment options.
Where non-Hodgkin's lymphoma occurs
Non-Hodgkin's lymphoma generally involves the presence of cancerous lymphocytes in your lymph nodes, but the disease can also spread to other parts of your lymphatic system. These include the lymphatic vessels, tonsils, adenoids, spleen, thymus and bone marrow. Occasionally, non-Hodgkin's lymphoma involves organs outside of your lymphatic system.
In most cases, people diagnosed with non-Hodgkin's lymphoma don't have any obvious risk factors, and many people who have risk factors for the disease never develop it. Some factors that may increase the risk of non-Hodgkin's lymphoma include:
- Medications that suppress your immune system. If you've had an organ transplant, you're more susceptible because immunosuppressive therapy has reduced your body's ability to fight off new illnesses.
- Infection with certain viruses and bacteria. Certain viral and bacterial infections appear to increase the risk of non-Hodgkin's lymphoma. Viruses linked to increased non-Hodgkin's lymphoma risk include HIV and Epstein-Barr virus. Bacteria linked to an increased risk of non-Hodgkin's lymphoma include the ulcer-causing Helicobacter pylori.
- Chemicals. Certain chemicals, such as those used to kill insects and weeds, may increase your risk of developing non-Hodgkin's lymphoma. More research is needed to understand the possible link between pesticides and the development of non-Hodgkin's lymphoma.
- Older age. Non-Hodgkin's lymphoma can occur at any age, but the risk increases with age. It's most common in people in their 60s or older.
Make an appointment with your family doctor or a general practitioner if you have any signs or symptoms that worry you. If your doctor suspects you have non-Hodgkin's lymphoma, you may be referred to a doctor who specializes in diseases that affect the blood cells (hematologist).
Because appointments can be brief, and because there's often a lot of ground to cover, it's a good idea to be well prepared. Here's some information to help you get ready, and what to expect from your doctor.
What you can do
- Be aware of any pre-appointment restrictions. At the time you make the appointment, be sure to ask if there's anything you need to do in advance, such as restrict your diet.
- Write down any symptoms you're experiencing, including any that may seem unrelated to the reason for which you scheduled the appointment.
- Write down key personal information, including any major stresses or recent life changes.
- Make a list of all medications, vitamins or supplements you're taking.
- Consider taking a family member or friend along. Sometimes it can be difficult to remember all the information provided during an appointment. Someone who accompanies you may remember something that you missed or forgot.
- Write down questions to ask your doctor.
Your time with your doctor is limited, so preparing a list of questions can help you make the most of your time together. List your questions from most important to least important in case time runs out. For non-Hodgkin's lymphoma, some basic questions to ask your doctor include:
- Do I have non-Hodgkin's lymphoma?
- What type of non-Hodgkin's lymphoma do I have?
- What stage is my non-Hodgkin's lymphoma?
- Is my non-Hodgkin's lymphoma aggressive or slow growing?
- Will I need more tests?
- Will I need treatment?
- What are my treatment options?
- What are the potential side effects of each treatment?
- How will treatment affect my daily life? Can I continue working?
- How long will treatment last?
- Is there one treatment you feel is best for me?
- If you had a friend or loved one in my situation, what advice would you give that person?
- Should I see a specialist? What will that cost, and will my insurance cover it?
- Are there brochures or other printed material that I can take with me? What websites do you recommend?
In addition to the questions that you've prepared to ask your doctor, don't hesitate to ask additional questions as they come up during your appointment.
What to expect from your doctor
Your doctor is likely to ask you a number of questions. Being ready to answer them may allow more time to cover other points you want to address. Your doctor may ask:
- When did you first begin experiencing symptoms?
- Have your symptoms been continuous or occasional?
- How severe are your symptoms?
- What, if anything, seems to improve your symptoms?
- What, if anything, appears to worsen your symptoms?
Tests and procedures used to diagnose non-Hodgkin's lymphoma include:
- Physical examination. Your doctor may conduct a physical exam to determine the size and condition of your lymph nodes and to find out whether your liver and spleen are enlarged.
- Blood and urine tests. Blood and urine tests may help rule out an infection or other disease.
- Imaging tests. Your doctor may recommend imaging tests to look for tumors in your body. Imaging tests may include X-ray, computerized tomography (CT) scan, magnetic resonance imaging (MRI) or positron emission tomography (PET).
- Removing a sample of lymph node tissue for testing. Your doctor may recommend a biopsy procedure to sample or remove a lymph node for testing. Analyzing lymph node tissue in a lab may reveal whether you have non-Hodgkin's lymphoma and, if so, which type.
- Looking for cancer cells in your bone marrow. To find out whether the disease has spread, your doctor may request a biopsy of your bone marrow. This involves inserting a needle into your pelvic bone to obtain a sample of bone marrow.
Your treatment options are determined based on the type and stage of your lymphoma, your age, and your overall health.
Treatment isn't always necessary
If your lymphoma appears to be slow growing (indolent), a wait-and-see approach may be an option. Indolent lymphomas that don't cause signs and symptoms may not require treatment for years.
Delaying treatment doesn't mean you'll be on your own. Your doctor will likely schedule regular checkups every few months to monitor your condition and ensure that your cancer isn't advancing.
Treatment for lymphoma that causes signs and symptoms
If your non-Hodgkin's lymphoma is aggressive or causes signs and symptoms, your doctor may recommend treatment. Options may include:
- Chemotherapy. Chemotherapy is drug treatment — given orally or by injection — that kills cancer cells. Chemotherapy drugs can be given alone, in combination with other chemotherapy drugs or combined with other treatments.
- Radiation therapy. Radiation therapy uses high-powered energy beams, such as X-rays, to kill cancerous cells and shrink tumors. During radiation therapy, you're positioned on a table and a large machine directs radiation at precise points on your body. Radiation therapy can be used alone or in combination with other cancer treatments.
- Stem cell transplant. A stem cell transplant is a procedure that involves very high doses of chemotherapy or radiation with the goal of killing the lymphoma cells that may not be killed with standard doses. Later, healthy stem cells — your own or from a donor — are injected into your body, where they can form new healthy blood cells.
- Medications that enhance your immune system's ability to fight cancer. Biological drugs help your body's immune system fight cancer. Rituximab (Rituxan) is a type of monoclonal antibody that attaches to B cells and makes them more visible to the immune system, which can then attack. Rituximab lowers the number of B cells, including your healthy B cells, but your body produces new healthy B cells to replace these. The cancerous B cells are less likely to recur.
- Medications that deliver radiation directly to cancer cells. Radioimmunotherapy drugs are made of monoclonal antibodies that carry radioactive isotopes. This allows the antibody to attach to cancer cells and deliver radiation directly to the cells. Two radioimmunotherapy drugs — ibritumomab (Zevalin) and tositumomab (Bexxar) — are used to treat lymphoma.
A diagnosis of cancer can be overwhelming. With time you'll find ways to cope with the distress and uncertainty of cancer. Until then, you may find it helps to:
- Learn enough about lymphoma to make decisions about your care. Ask your doctor about your non-Hodgkin's lymphoma, including your treatment options and, if you like, your prognosis. As you learn more about non-Hodgkin's lymphoma, you may become more confident in making treatment decisions.
- Keep friends and family close. Keeping your close relationships strong will help you deal with your non-Hodgkin's lymphoma. Friends and family can provide the practical support you'll need, such as helping take care of your house if you're in the hospital. And they can serve as emotional support when you feel overwhelmed by cancer.
Find someone to talk with. Find a good listener with whom you can talk about your hopes and fears. This may be a friend or family member. The concern and understanding of a counselor, medical social worker, clergy member or cancer support group also may be helpful.
Ask your doctor about support groups in your area. Or check your phone book, library or a cancer organization, such as the National Cancer Institute or the Leukemia & Lymphoma Society.
- Teamwork. At Mayo Clinic, experts in hematology, oncology, pathology and radiation oncology work together to care for people with non-Hodgkin's lymphoma. Other professionals are included as needed.
- Experience. Mayo Clinic doctors treat an average of more than 5,700 people with non-Hodgkin's lymphoma each year.
- The latest diagnostic technology. Mayo Clinic doctors have access to the latest technologies and techniques used to analyze non-Hodgkin's lymphoma cells. These advanced technologies allow doctors to precisely diagnose your cancer and select the most appropriate treatments.
- A full range of treatment options to consider. Mayo Clinic doctors will work with you to review all of your treatment options and choose the treatment that best suits your needs and goals. The range of treatments offered to people with non-Hodgkin's lymphoma includes chemotherapy, radiation therapy, biological therapy and stem cell transplant.
- Comprehensive cancer center. Mayo Clinic Cancer Center meets strict standards for a National Cancer Institute comprehensive cancer center, which recognizes scientific excellence and a multidisciplinary approach to cancer prevention, diagnosis and treatment.
Mayo Clinic in Rochester, Minn., is ranked among the Best Hospitals for cancer by U.S. News & World Report. Mayo Clinic in Jacksonville, Fla., and Mayo Clinic in Scottsdale, Ariz., are ranked high performing for cancer by U.S. News & World Report.
At Mayo Clinic, we assemble a team of specialists who take the time to listen and thoroughly understand your health issues and concerns. We tailor the care you receive to your personal health care needs. You can trust our specialists to collaborate and offer you the best possible outcomes, safety and service.
Mayo Clinic is a not-for-profit medical institution that reinvests all earnings into improving medical practice, research and education. We're constantly involved in innovation and medical research, finding solutions to improve your care and quality of life. Your doctor or someone on your medical team is likely involved in research related to your condition.
Our patients tell us that the quality of their interactions, our attention to detail and the efficiency of their visits mean health care — and trusted answers — like they've never experienced.
Why Choose Mayo Clinic
What Sets Mayo Clinic Apart
Mayo Clinic works with hundreds of insurance companies and is an in-network provider for millions of people. In most cases, Mayo Clinic doesn't require a physician referral. Some insurers require referrals or may have additional requirements for certain medical care. All appointments are prioritized on the basis of medical need.
At Mayo Clinic in Arizona, specialists in hematology and oncology, radiation oncology, and other areas as needed, such as neurology, care for adults with non-Hodgkin's lymphoma.
For appointments or more information, call the Central Appointment Office at 800-446-2279 (toll-free) 8 a.m. to 5 p.m. Mountain Standard Time, Monday through Friday or complete an online appointment request form.
- U.S. Patients
- International Patients
At Mayo Clinic in Florida, specialists in hematology and oncology, radiation oncology, and other areas as needed, such as neurology, care for adults with non-Hodgkin's lymphoma.
For appointments or more information, call the Central Appointment Office at 904-953-0853 8 a.m. to 5 p.m. Eastern time, Monday through Friday or complete an online appointment request form.
- U.S. Patients
- International Patients
At Mayo Clinic in Minnesota, specialists in hematology, oncology, radiation oncology and other areas as needed, such as neurology, care for adults and children with non-Hodgkin's lymphoma.
For appointments or more information, call the Central Appointment Office at 507-538-3270 7 a.m. to 6 p.m. Central time, Monday through Friday or complete an online appointment request form.
- U.S. Patients
- International Patients
See information on patient services at the three Mayo Clinic locations, including transportation options and lodging.
Mayo Clinic doctors and researchers are focused on identifying new methods of prevention, detection and treatment of lymphoma. Mayo Clinic's non-Hodgkin's lymphoma research is supported by the National Cancer Institute through a Specialized Program of Research Excellence (SPORE) grant for lymphoma research.
Cancer research is conducted in coordination with the Mayo Clinic Cancer Center. The Mayo Clinic Cancer Center receives funding from the National Cancer Institute and is designated as a comprehensive cancer center — recognition for an institution's scientific excellence and multidisciplinary resources focused on cancer prevention, diagnosis and treatment.
See a list of publications by Mayo Clinic authors on non-Hodgkin's lymphoma on PubMed, a service of the National Library of Medicine.
Jul. 26, 2013
- Non-Hodgkin's lymphomas. Fort Washington, Pa.: National Comprehensive Cancer Network. http://www.nccn.org/professionals/physician_gls/f_guidelines.asp. Accessed May 29, 2013.
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- Non-Hodgkin lymphoma. Leukemia & Lymphoma Society. http://www.lls.org/resourcecenter/freeeducationmaterials/lymphoma/nonhodgkin. Accessed May 29, 2013.
- What you need to know about non-Hodgkin lymphoma. National Cancer Institute. http://cancer.gov/cancertopics/wyntk/non-hodgkin-lymphoma. Accessed May 29, 2013.
- Taking time: Support for people with cancer. National Cancer Institute. http://cancer.gov/cancertopics/takingtime. Accessed May 28, 2013.
- Lymphoma SPOREs. National Cancer Institute. http://trp.cancer.gov/spores/lymphoma.htm. Accessed May 29, 2013.
- Cook AJ. Decision Support System. Mayo Clinic, Rochester, Minn. May 24, 2013.