tick-borne disease A disease that is carried by or caused by a tick. Examples of tick-borne diseases in the US include babesiosis (a malaria-like infection), ehrlichiosis, Lyme disease, relapsing fever (also called tick fever, most common in the western US), Rocky Mountain spotted fever, tick paralysis, and tularemia (rabbit fever). Anyone working in the outdoors,…
thrombinogen See prothrombin.
thrombocyte See platelet.
thrombocythemia An abnormally high number of platelets in the blood. Also known as thrombocytosis.
thrombocytopenia–absent radius syndrome See TAR syndrome.
thrombocytosis See thrombocythemia.
thromboembolism Formation in a blood vessel of a clot (thrombus) that breaks loose and is carried by the blood stream to plug another vessel. The clot may plug a vessel in the lungs (pulmonary embolism), brain (stroke), gastrointestinal tract, kidneys, or leg. Thromboembolism is a significant cause of morbidity (disease) and mortality (death), especially in…
thrombolytic agent See clot-dissolving medication.
thrombophilia The tendency to form thromboses (blood clots in arteries and veins).
thrombophlebitis Inflammation of a vein that occurs when a blood clot forms.
thrombosis, cavernous sinus See cavernous sinus thrombosis.
thrombotic disease due to protein C deficiency See protein C deficiency.