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Glossary

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  • Thoracentesis

    (THOR-uh-sen-TEE-sis)

    Removal of fluid from the pleural cavity through a needle inserted between the ribs.

  • Thrombectomy

    (throm-BEK-toh-mee)

    Surgery to remove a thrombus (blood clot) from a blood vessel.

  • Thrombocytopenia

    (throm-bo-sigh-toe-PEEN-e-uh)

    A condition in which there is a lower-than-normal number of platelets in the blood. It may result in easy bruising and excessive bleeding from wounds or bleeding in mucous membranes and other tissues.

  • Thrombolysis

    (throm-BOL-ih-sis)

    The process of breaking up a thrombus (blood clot) that is blocking blood flow. The blood clot may be dissolved using drugs delivered through a catheter (tube) into the clot.

  • Thrombophlebitis

    (THROM-boh-fleh-BY-tis)

    Inflammation of a vein that occurs when a blood clot forms.

  • Thrombosis

    (throm-BOH-sis)

    The formation or presence of a thrombus (blood clot) inside a blood vessel.

  • Thymus

    (THY-mus)

    An organ that is part of the lymphatic system, in which T lymphocytes grow and multiply. The thymus is in the chest behind the breastbone.

  • Thyroid

    (THY-royd)

    A gland located beneath the larynx (voice box) that makes thyroid hormone and calcitonin. The thyroid helps regulate growth and metabolism. Also called thyroid gland.

  • Thyroid Gland

    (THY-royd...)

    A gland located beneath the larynx (voice box) that makes thyroid hormone and calcitonin. The thyroid gland helps regulate growth and metabolism. Also called thyroid.

  • Thyroid cancer

    (THY-royd KAN-ser)

    Cancer that forms in the thyroid gland (an organ at the base of the throat that makes hormones that help control heart rate, blood pressure, body temperature, and weight). Four main types of thyroid cancer are papillary, follicular, medullary, and anaplastic thyroid cancer. The four types are based on how the cancer cells look under a microscope.