How to diagnose Adult Hodgkin Lymphoma?

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How to diagnose Adult Hodgkin Lymphoma?

Tests that examine the lymph system and other parts of the body are used to help diagnose and stage adult Hodgkin lymphoma.

The results of the tests and procedures below also help make decisions about treatment.

These tests may include:

  • Physical exam and health 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, 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.
  • 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 (LDH). 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. Knowing whether a patient has hepatitis B or C may help plan treatment.
  • HIV test: A test to measure the level of human immunodeficiency virus (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. Knowing whether a patient has HIV may help plan treatment.
  • Sedimentation rate: A procedure in which a sample of blood is drawn and checked for the rate at which the red blood cells settle to the bottom of the test tube. The sedimentation rate is a measure of how much inflammation is in the body. A higher than normal sedimentation rate may be a sign of lymphoma or another condition. Also called erythrocyte sedimentation rate, sed rate, or ESR.
  • PET-CT scan: A procedure that combines the pictures from a positron emission tomography (PET) scan and a computed tomography (CT) scan. The PET and CT scans are done at the same time on the same machine. The pictures from both scans are combined to make a more detailed picture than either test would make by itself. A PET-CT scan may be used to help diagnose disease, such as cancer, determine stage, plan treatment, or find out how well treatment is working.
    • 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. If a PET-CT scan is not available, a CT scan alone may be done.
    • PET scan (positron emission tomography scan): A PET scan is 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.
  • Lymph node biopsy: The removal of all or part of a lymph node. A pathologist views the tissue under a microscope to look for cancer cells called Reed-Sternberg cells. Reed-Sternberg cells are common in classic Hodgkin lymphoma.
  • One of the following types of biopsies may be done:
    • Excisional biopsy: The removal of an entire lymph node.
    • Incisional biopsy: The removal of part of a lymph node.
    • Core biopsy: The removal of tissue from a lymph node using a wide needle.
  • Other areas of the body, such as the liver, lung, bone, bone marrow, and brain, may also have a sample of tissue removed and checked by a pathologist for signs of cancer.
    The following test may be done on tissue that was removed:
  • Immunophenotyping: A laboratory test that uses antibodies to identify cancer cells based on the types of antigens or markers on the surface of the cells. This test is used to help diagnose specific types of lymphoma.

For pregnant women with Hodgkin lymphoma, imaging tests that protect the unborn baby from the harms of radiation are used. These include:

  • MRI (magnetic resonance imaging): A procedure that uses a magnet, radio waves, and a computer to make a series of detailed pictures of areas inside the body. This procedure is also called nuclear magnetic resonance imaging (NMRI). In women who are pregnant, contrast dye is not used during the procedure.
  • 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.

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