1. What are Non-Hodgkin's Lymphomas?
ANSWER: Lymphoma is a general term
for cancers that develop in the lymphatic system. The most common type is called
Hodgkin's. All other
Lymphomas are grouped together and
are called non-Hodgkin's lymphomas.
The lymphatic system is part of the
body's immune defense system. Its job is to help fight diseases and infection. The
lymphatic system includes a network of thin tubes that branch, like blood vessels, into
tissues throughout the body. Lymphatic vessels carry lymph, a colorless, watery fluid that
contains infection-fighting cells called lymphocytes. Along this network of vessels are
small, bean-shaped organs called lymph nodes. Clusters of lymph nodes are found in the
underarms, groin, neck, chest, and abdomen.
Other parts of the lymphatic system
are the spleen, thymus, tonsils, and bone marrow. Lymphatic tissue is also found in other
parts of the body, including the stomach, intestines, and skin.
Like all types of cancer, lymphomas
are diseases of the body's cells. Healthy cells grow, divide, and replace themselves in an
orderly manner. This process keeps the body in good repair.
In the non-Hodgkin's lymphoma, cells
in the lymphatic system grow abnormally. They divide too rapidly and grow without any
order or control. Too much tissue is formed, and tumors begin to grow. The cancer cells
can also spread to other organs.
2. What are the symptoms of
non-Hodgkin's lymphomas?
ANSWER: The most common symptom of
non-Hodgkin's lymphomas is a
Other symptoms may include:
Unexplained fevers
Drenching night sweats
Fatigue
Unexplained weight loss (in past 6
months)
Itching skin
Reddened patches on the skin
Nausea, vomiting or abdominal pain
(sometimes)
Painless swelling in the lymph
nodes in the neck, underarm, or groin
As lymphomas progress, the body is
less able to fight infection.
However, these symptoms are not sure
signs of cancer. They may also be caused by many common illnesses, such as the flu or
other infections. But it is important to see a doctor if any of these symptoms lasts
longer than two weeks. Any illness should be diagnosed and treated as early as possible.
3. How do you diagnose non-Hodgkin's
Lymphomas?
ANSWER: The doctor will ask about
your medical history and will do a through physical exam. The only sure way to tell
whether cancer is present is with a biopsy. Tissue from an enlarged lymph node is removed.
By examining this tissue under the microscope, a pathologist can identify the cancer cells
and tell whether the lymphoma is the kind that usually grows slowly or rapidly.
There are many types of non-Hodgkin's
lymphomas. Some types spread more quickly than others. The type is determined by how the
cancer cells look under a microscope. This determination is called the histology. The
histologies for adult non-Hodgkin's lymphoma are divided into two groups: indolent
lymphomas, which are slower growing and have fewer symptoms, and aggressive lymphomas,
which grow more quickly.
Indolent Aggressive
follicular small cleaved cell
lymphoma adult diffuse mixed cell lymphoma
follicular mixed cell lymphoma adult
diffuse large cell lymphoma
follicular large cell lymphoma adult
immunoblastic lymphoma
adult diffuse small cleaved cell
lymphoma adult lymphoblastic lymphoma
small lymphocytic (marginal zone)
adult small noncleaved cell lymphoma
lymphoplasmacytoid lymphoma
anaplastic large cell lymphoma
mantel cell lymphoma adult T-cell
lymphoma/leukemia
monocytoid B-cell lymphoma intestinal
T-cell lymphoma
mucosa-associated lymphoid tissue
(MALT) primary mediastinal B-cell lymphoma
splenic marginal zone lymphoma
peripheral T-cell lymphoma
lymphoblastic lymphoma
post-transplantation
lymphoproliferative disorder
When lymphoma is diagnosed, the
doctor needs to know what kind it is and the stage, or extent, of the disease. This
information is very important for planning treatment. The stage indicates where the
disease has spread and how much tissue is affected.
The doctor checks:
The number and location of affected
lymph nodes
Whether the affected lymph nodes
are above, below, or on both sides
Of the diaphragm (the thin muscle
under the lungs and heart that separates the chest from the abdomen)
In staging, the doctor usually orders
blood tests and x-rays of the chest, bones, liver, and spleen. Other special tests include
additional biopsies of the lymph nodes, bone marrow, and other sites. Most patients have
lymphangiograms, special dye to outline the lymph nodes and vessels. The doctor may also
want the patient to have a CT (or CAT) scan. A CT scan is a series of x-rays put together
by a computer to form pictures of various parts of the body. Ultrasonography may also be
used. This test creates pictures of internal organs using echoes of high-frequency sound
waves.
4. What are the treatment options for
non-Hodgkin's lymphomas?
ANSWER: Treatment decisions for
non-Hodgkin's lymphomas are complex.
Before starting treatment, the
patient might want a second doctor to review the diagnosis and treatment plan. Treatment
planning takes into account the type of lymphoma, the stage of disease, whether it is
likely to grow slowly or rapidly, and the general health and age of the patient. For
low-grade lymphomas, which usually grow very slowly and cause few symptoms, the doctor may
decide to wait until the disease shows signs of spreading before starting treatment.
Treatment for intermediate or high-grade lymphomas usually involves chemotherapy, with or
without radiation therapy. In addition, surgery may be needed to remove a large tumor.
Chemotherapy is the use of drugs to
kill cancer cells. Chemotherapy for non-Hodgkin's lymphomas usually is a combination of
several drugs. Some drugs are given by mouth; others are injected into a blood vessel or
muscle. The drugs travel through the bloodstream to nearly every part of the body.
Chemotherapy is usually given in cycles: a treatment period followed by a rest period,
then another treatment period, and so on.
Radiation therapy uses high-energy
rays to damage cancer cells and stop their growth. Radiation therapy is generally given in
the outpatient department of a hospital or clinic. Most often, patients receive radiation
therapy five days a week for five to six weeks.
Biological Therapy is using the
body's immune system to fight cancer or infections. It uses materials made by the body or
made in a laboratory to boost, direct, or restore the body's natural defenses against
disease. Biological treatment is sometimes called biological response modifier (BRM)
therapy.
Bone marrow transplantation is a
newer type of treatment that uses very high doses of chemotherapy to kill resistant
lymphoma cells in the body. The high doses of chemotherapy also destroy most of the bone
marrow in the body. To replace the bone marrow, marrow is taken from the bones before
treatment and treated with drugs or other substances to kill any cancer cells. The marrow
is then frozen, and the patient is given high-dose chemotherapy with or without radiation
therapy to destroy all of the remaining cancer cells. The marrow that was taken out is
they thawed and given to the patient through a needle in a vein to replace the marrow that
was destroyed. This type of transplant is called an autologous transplant. If the marrow
is taken from another person, the transplant is called an allogeneic transplant.
Often, patients are referred to
medical centers that specialize in treating lymphomas. Also, patients may want to talk
with the doctor about taking part in a research study of new treatment methods. Such
studies are called clinical trials.
5. What are the side effects of
treatment?
ANSWER: The methods used to treat
lymphomas are very powerful. That's why treatment often causes side effects. Fortunately,
most side effects are temporary.
The side effects of chemotherapy
depend on the drugs given and the individual response of the patient. Chemotherapy
commonly affects rapidly growing cells, such as blood cells that fight infection and cells
that line the digestive tract. As a result, patients may have side effects such as lower
resistance to infection, loss of appetite, nausea and vomiting, and mouth sores. They may
also lose their hair. These side effects usually end after chemotherapy is finished.
During radiation therapy, patients
may notice a number of side effects. They may become unusually tired as the treatment
continues. Resting as much as possible is important. Skin reactions (redness or dryness)
in the area being treated are also common. Patients should be gentle with the treated area
of skin. Lotions and creams should not be used without the doctor's advice. When the chest
and neck area is treated, patients may have a dry, sore throat and may have some trouble
swallowing. Sometimes, they have shortness of breath or a dry cough. Radiation therapy to
the abdomen may cause nausea, vomiting, or diarrhea. Some patients may have tingling or
numbness in their arms, legs, and lower back. These side effects gradually disappear when
treatment is over.
Loss of appetite can be a problem for
patients receiving chemotherapy or radiation therapy. Researchers are learning that
patients who eat well are better able to tolerate the side effects of their treatment.
Therefore, good nutrition is important. Eating well means getting enough calories to
prevent weight loss and having enough protein in the diet to build and repair skin, hair,
muscles, and organs. Many patients find that eating several small meals and snacks
throughout the day is easier than trying to have three large meals.
The side effects that patients have
during cancer therapy vary from person to person and may even be different from one
treatment to the next. Doctors try to plan treatment to keep problems to a minimum.
Doctors, nurses, and dietitians can explain the side effects of cancer treatment and can
suggest ways to deal with them.
6. What should I ask my doctor about
when diagnosed with non-Hodgkin's Lymphoma?
ANSWER: Here are some questions you
may want to ask your doctor:
How can this disease be treated?
What are my treatment choices?
How successful is the treatment
likely to be?
Would a clinical trial be
appropriate for me?
What are the expected benefits of
treatment?
What are the risks and possible
side effects of treatment?
Will I have to change my normal
activities?
Can I keep working during
treatment?
How often will I need checkups?
Your doctor is the best person to
give advice about working or to answer questions about other activities. Many patients
find it also helps to talk with others who are facing similar problems. This kind of help
is available through cancer-related support groups. Social services, clergy, nursing
personnel or your doctor can offer suggestions as to where to seek assistance with
emotional support.
7. What kind of follow up care should
I expect?
ANSWER: Regular follow up exams are
very important for anyone who has been treated for non-Hodgkin's lymphoma. Most relapses
occur in the first 2 years after therapy.
Generally, checkups include a careful
physical exam, x-rays, blood tests, and other laboratory tests. Patients should follow
their doctor's recommendations on health care and checkups. Having regular checkups allows
problems to be detected and treated promptly if they should arise.
8. Where do I get help to cope with
this?
Support for Cancer Patients
Adapting to the changes brought about
by having cancer is easier for both patients and their families when they have helpful
information and support services. Often, the social service office at the hospital or
clinic can suggest local and national agencies that will help with emotional support,
financial aid, transportation, home care, or rehabilitation. The American Cancer Society
and the Leukemia Society of America are two nonprofit organizations that offer a variety
of services to patients and their families.
Their local offices may be listed the
telephone book.
9. What does the future hold?
More than 8 million Americans living
today have had some type of cancer. Thirty years ago, few patients recovered from
non-Hodgkin's lymphoma. Because of advances in combination chemotherapy and radiation
therapy, about half of all non-Hodgkin's lymphoma patients now survive. As scientists find
new and more effective treatments, the chances for recovery continue to improve.
Doctors often talk about
"surviving" cancer, or they may use the word "remission" rather than
"cure". Even though many patients recover completely, doctors use these terms
because non-Hodgkin's lymphoma can show up again. Patients are naturally concerned about
their future and may try to use statistics they have read or heard about to figure out
their own chances of being cured. It is important to remember, however, that statistics
are averages based on the experiences of large numbers of people, and n o two cancer
patients are alike. Only the doctor who takes care of a patient knows enough about that
person to discuss the prognosis.