Lymphatic And Immune Pathology

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allergy

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Abnormal hypersensitivity acquired by exposure to antigen

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lymphoma

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Malignant tumor of lymph nodes and lymph tissue

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multiple myeloma

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Malignant tumor of bone marrow cells

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thymoma

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Malignant tumor of the thymus gland

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allergen

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Substance capable of causing a specific hypersensitivity reaction in the body; a type of antigen

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anaphylaxis

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Exaggerated or unusual hypersensitivity to foreign protein or other substance

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atopy

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Hypersensitive or allergic state involving an inherited predisposition.

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CD4+ cells

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Helper T cells that carry the CD4 protein antigen on their surface. HIV binds to CD4 and infects and kills T cells bearing this protein. AIDS patients have an inadequate number of CD4+ cells

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Hodgkin disease

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Malignant tumor of lymphoid tissue in spleen and lymph nodes; Reed-Sternberg cell often is found on microscopic analysis

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human immunodeficiency virus (HIV)

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Virus (retrovirus) that causes AIDS

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Kaposi sarcoma

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Malignant lesion associated with AIDS; arises from the lining of capillaries and appears as red, purple, brown, or black skin nodules

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non-Hodgkin lymphomas

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Group of malignant tumors involving lymphoid tissue. Examples are follicular lymphoma and large cell lymphoma

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opportunistic infections

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Infectious diseases associated with AIDS; they occur because HIV infection lowers the body's resistance and allows infection by bacteria and parasites that normally are easily contained.

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protease inhibitor

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Drug that treats AIDS by blocking the production of protease, a proteolytic enzyme that helps create new viral pieces for HIV

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reverse transcriptase inhibitor RTI

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Drug that treats AIDS by blocking reverse transcriptase, an enzyme needed to make copies of HIV.

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wasting syndrome

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Weight loss, decrease in muscular strength, appetite, and mental activity; associated with AIDS

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CD4+ cell count

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Measures the number of CD4+ T cells (helper T cells) in the bloodstream of patients with AIDS

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ELISA

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Screening test to detect anti-HIV antibodies int he bloodstream

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immunoelectrophoresis

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Test that separates immunoglobulins

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viral load test

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Measurement of the amount of AIDS virus in the bloodstream

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computed tomography scan

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x-ray imaging produces cross-sectional and other views of anatomic structures