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Medical Term	Description
adenitis	Inflammation of a lymph node resulting in swelling or pain.
adenoma	A benign epithelial tumor with a glandular structure
adenovirus	Virus responsible for upper respiratory tract infections, conjunctivitis, cystitis or GI infection.
antibodies	Immunoglobulin molecules produced in lymphoid tissue that attack the antigen that induced their synthesis.
antigens	Substances that are recognized by the immune system and induce an immune reaction.
antiviral	Destroying a virus or suppressing replication.
autoantibody	An antibody that react with self-antigens of the organism that produced them.
autoantigens	Endogenous tissue constituents that have the ability to interact with autoantibodies and cause an immune response.
autoimmune	Disorder of the immune system in which an immune response is created against the body's own tissues.
autoimmunity	Process whereby the immune system reacts against the body's own tissues.
cervical cancer	A neoplasm of the cervix of the uterus.
chemotherapy	Treatment of cancer and other diseases by means of chemical agents.
cytokines	Substances, such as interferon, interleukin, and growth factors, that are secreted by certain cells of the immune system that act as intercellular mediators.
dengue	An acute febrile disease transmitted by the bite of infected Aedes mosquitoes. It occurs in tropical regions and is characterized by fever, severe pain, headache and rash.
epitope	Any site on an antigen that interact with specific antibodies.
hiv	Human immunodeficiency virus.
hypersensitivity	Abnormally high response to an antigen.
immunity	Protection from diseases, particularly infectious diseases.
immunization	A process for building or augmenting resistance to an infectious disease.
interferon	A class of small protein and glycoprotein cytokines produced by T cells, fibroblasts, and other cells in response to viral infection and other biologic and synthetic stimuli.
lymphadenopathy	Inflammation of the lymph nodes causing enlargement.
lymphangiectasis	A transient dilatation of the lymphatic vessels.
lymphangiosarcoma	A malignant neoplasm originating from the endothelial cells of lymphatic vessels.
lymphocele	Cystic mass containing lymph.
lymphocytosis	An abnormal increase in the number of lymphocytes in the blood.
lymphopenia	Decrease in the number of lymphocytes of the blood.
preleukemia	Conditions in which the abnormalities in the peripheral blood or bone marrow represent the early manifestations of acute leukemia, but in which the changes are not of sufficient magnitude or specificity to permit a diagnosis of acute leukemia by the usual clinical criteria.
scrofula	Tuberculosis affecting the lymph nodes, particularly the neck.
splenectomy	Surgical procedure involving either partial or entire removal of the spleen.
splenitis	Inflammation of the spleen.
thymocytes	Lymphocyte arising in the thymus.
thymoma	A neoplasm originating from thymic tissue, usually benign, and frequently encapsulated.
vaccination	Administration of vaccines to stimulate the host's immune response.
vaccine	A suspension of killed or attenuated microorganisms administered for the prevention or treatment of infection.

Authors and Reviewers

Authored by Dr. Barbara A. Erickson
Medically reviewed by Dr. Jonathan Keroes, MD
Last Update: 12/18/2022