Childhood Non-Hodgkin Lymphoma Treatment
General Information About Childhood Non-Hodgkin Lymphoma
Key Points for this Section
Childhood non-Hodgkin lymphoma is a disease in which
malignant (cancer) cells form in the lymph system.
The lymph system is
part of the immune system and is
made up of the following:
- Lymph: Colorless, watery fluid that travels through the lymph system and carries white blood cells called lymphocytes. Lymphocytes protect the body against infections and the growth of tumors.
- 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 grow along the network of lymph vessels
found throughout the body. Clusters of lymph nodes are found in the underarm,
pelvis, neck, abdomen, and groin.
- Spleen: An organ that makes lymphocytes, filters the
blood, stores blood cells, and destroys old blood cells. The spleen is on the
left side of the abdomen near the stomach.
- Thymus: An organ in which lymphocytes grow and multiply. The
thymus is in the chest behind the breastbone.
- Tonsils: Two small masses of lymph tissue at the back of the throat. The
tonsils make lymphocytes.
- Bone marrow: The soft, spongy tissue in the center of
large bones. Bone marrow makes white blood cells, red blood cells, and
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.
Because lymph tissue is found throughout the body, childhood
non-Hodgkin lymphoma can begin in almost any part of the body. Cancer can spread to the
liver and many other organs and tissues.
Non-Hodgkin lymphoma can occur in both adults and children. Treatment for children is different than treatment for adults.
the PDQ summary on Adult Non-Hodgkin
Lymphoma Treatment for more information on treatment in adults.)
There are four major types of childhood non-Hodgkin
The specific type of lymphoma is determined by how the cells look
under a microscope. The 4 major types of childhood non-Hodgkin lymphoma
There are other types of lymphoma that occur in children. These include the following:
- Lymphoproliferative disease associated with a weakened immune system.
- Rare non-Hodgkin lymphomas that are more common in adults than in children.
Possible signs of childhood non-Hodgkin lymphoma include
breathing problems and swollen lymph nodes.
These and other symptoms may be caused by childhood non-Hodgkin lymphoma. Other conditions may cause the same symptoms. A doctor should be consulted if any of the following problems
- Trouble breathing.
- High-pitched breathing sounds.
- Swelling of the head, neck, upper body or arms.
- Trouble swallowing.
- Painless swelling of the lymph nodes in the neck, underarm,
stomach, or groin.
- Fever for no known reason.
- Weight loss for no known reason.
- Night sweats.
Tests that examine the body and lymph system are used to detect (find)
and diagnose childhood 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 habits and past illnesses and treatments will also be taken.
removal of cells or tissues so they can be viewed under a microscope by a pathologist to check for
signs of cancer. One of the following types of biopsies may be done:
biopsy: The removal of an entire lymph node or lump of tissue.
biopsy: The removal of part of a lump, lymph node, or sample of tissue.
- Core biopsy: The removal of tissue or part of a lymph node using a wide needle.
- Fine-needle aspiration (FNA) biopsy:
The removal of tissue or part of a lymph node using a thin needle.
- Bone marrow aspiration and biopsy: The removal of bone marrow, blood, and a small piece of bone by inserting a hollow needle into the hipbone or breastbone.Bone marrow aspiration and biopsy. After a small area of skin is numbed, a Jamshidi needle (a long, hollow needle) is inserted into the patient’s hip bone. Samples of blood, bone, and bone marrow are removed for examination under a microscope.
- Immunohistochemistry study: A laboratory test in which a substance such as an antibody, dye, or radioisotope is added to a sample of cancer tissue to test for certain antigens. This type of study is 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.
- Endoscopy: A procedure to look at organs and tissues inside the body to check for abnormal areas. An endoscope is inserted through an incision (cut) in the skin or opening in the body, such as the mouth. An endoscope 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 disease.
- Mediastinoscopy: A surgical procedure to look at the organs, tissues, and lymph nodes between the lungs for abnormal areas. An incision (cut) is made at the top of 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.
- 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.
- Thoracoscopy: A surgical procedure to look at the organs inside the chest to check for abnormal areas. An incision (cut) is made between two ribs and a thoracoscope is inserted into the chest. A thoracoscope 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. In some cases, this procedure is used to remove part of the esophagus or lung.
- Thoracentesis: The removal of fluid from the space between the lining of the chest and the lung, using a needle. A pathologist views the fluid under a microscope to look for cancer cells.
- Ultrasound exam: 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. The picture can be printed to be looked at later.
- PET scan (positron emission tomography scan): A procedure to find malignant tumor 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.
- Chest x-ray: An x-ray of the organs and bones inside the chest. An x-ray is a type of energy beam that can go through the body and onto film, making a picture of areas inside the body.
- CT scan (CAT scan): A procedure that makes a series of detailed pictures of areas inside the body, 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.
Certain factors affect prognosis (chance
of recovery) and treatment options.
The prognosis (chance of recovery) and treatment options depend on:
- The age of the child.
- The type of lymphoma.
stage of the cancer.
- The number of places outside of the lymph nodes to which the cancer has spread.
- Whether the lymphoma has spread to the bone marrow or central nervous system (brain and spinal cord).
- Whether there are certain changes in the chromosomes.
- The type of initial treatment.
- Whether the lymphoma responds to initial treatment.
- The patient’s general health.