NCCN Guidelines for Patients® | Chronic Lymphocytic Leukemia

39 NCCN Guidelines for Patients ® : Chronic Lymphocytic Leukemia, 2019 Words to know deoxyribonucleic acid (DNA) sequencing A lab test used to detect abnormal changes in DNA. diagnosis An identification of an illness based on tests. differential A lab test of the number of white blood cells for each type. DLBCL diffuse large B-cell lymphoma DNA deoxyribonucleic acid echocardiogram A test that uses sound waves to make pictures of the heart. fatigue Severe tiredness despite getting enough sleep that limits one’s ability to function. FDA U.S. Food and Drug Administration fertility specialist An expert who helps people to have babies. FISH fluorescence in situ hybridization flow cytometry A lab test of substances on the surface of cells to identify the type of cells present. fluorescence in situ hybridization (FISH) A lab test that uses special dyes to look for abnormal chromosomes and genes. gene Coded instructions in cells for making new cells and controlling how cells behave. haptoglobin One of the proteins made by the liver. hemoglobin A protein with iron in red blood cells. hemolysis The early death of red blood cells. IGHV immunoglobulin heavy-chain variable IHC immunohistochemistry imaging A test that makes pictures (images) of the insides of the body. immune system The body’s natural defense against infection and disease. immunoglobulin A protein that is made by B cells to help fight off infection. Also called antibody. immunohistochemistry (IHC) A lab test of cancer cells to find specific cell traits involved in abnormal cell growth. immunomodulator A cancer drug that modifies some parts of the body’s disease-fighting system. karyotyping A lab test that makes a map of chromosomes to find defects. kinase inhibitor A drug that blocks the transfer of phosphate. lactate dehydrogenase (LDH) A protein in blood that helps to make energy in cells. lymph A clear fluid containing white blood cells. lymph node A small, bean-shaped, disease-fighting structure. lymph vessel A small tube-shaped structure through which a fluid called lymph travels. lymphatic system A network of organs and vessels that collects and transports a fluid called lymph. lymphocyte One of three main types of white blood cells that help protect the body from illness. lymphoma A cancer of white blood cells called lymphocytes that are within the lymph system.