definition thrombocytosis
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Thrombocythemia [edit on Wikidata] Thrombocytosis (or thrombocythemia) is the presence of high platelet counts in the blood, and can be either primary (also termed essential and caused by a myeloproliferative disease) or reactive (also termed secondary).
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What are thrombocytes? Thrombocytes is an old name for platelets. This name describes the platelets as the cells, cytes is a word for cells, that contribute to thrombosis, or blood clotting. Edit
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- Thrombocytopenia and thrombopenia refer to a disorder in which there is a relative decrease of thrombocytes, commonly known as platelets, present in the blood. A normal human platelet count ranges from 150,000 to 450,000 platelets per microliter of blood.
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Chronic Myeloproliferative Neoplasms Treatment (PDQÂ®)âPatient Version Essential thrombocythemia is a disease in which too many platelets are made in the bone marrow. Essential thrombocythemia causes an abnormal increase in the number of platelets made in the blood and bone marrow.
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- Thrombocytosis. (Also Called 'Essential Thrombocythemia (ET)'). Thrombocytosis is a condition in which there is an excessive number of platelets in the blood. Platelets are blood cells in plasma that stop bleeding by sticking together to form a clot.Too many platelets can lead to certain conditions, including stroke, heart attack, or a clot in the blood vessels.hrombocytosis is a condition in which there is an excessive number of platelets in the blood. Platelets are blood cells in plasma that stop bleeding by sticking together to form a clot. Too many platelets can lead to certain conditions, including stroke, heart attack, or a clot in the blood vessels.
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Thrombocytosis Thrombocytosis Thrombocytosis and thrombocythemia are conditions in which your blood has a high number of platelets, also called thrombocytes, because a clot is also called a thrombus. When another disease or condition causes a high platelet count, the term thrombocytosis is preferred, or secondary or reactive thrombocytosis. Thrombocythemia or primary or essential thrombocythemia are used when the cause of the high platelet count is not known.
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Essential Thrombocythemia Essential Thrombocythemia. Essential thrombocythemia (ET) is a type of blood cancer known as a myeloproliferative neoplasm. It involves the abnormal development and function of bone marrow cells that produce blood cells, and leads to the overproduction of blood cells known as platelets.
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-     The production of red blood cells in the bone marrow is called hemopoiesis. Thrombopoiesis is the production of platelets in the bone marrow.
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Thrombosis [edit on Wikidata] Thrombosis (Greek: θρόμβωσις) is the formation of a blood clot (thrombus; Greek: θρόμβος) inside a blood vessel, obstructing the flow of blood through the circulatory system. When a blood vessel is injured, the body uses platelets (thrombocytes) and fibrin to form a blood clot to prevent blood loss.
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Thrombocytosis Thrombocytosis is a disorder in which your body produces too many platelets (thrombocytes), which play an important role in blood clotting. The disorder is called reactive thrombocytosis or secondary thrombocythemia when it's caused by an underlying condition, such as an infection.
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Thromboembolism What is Thromboembolism? Thromboembolism: Lodgement of a blood clot causing blockage. Thromboembolism: Obstruction of a vessel by a blood clot that has been transported from a distant site by the blood stream. Thromboembolism: occlusion of a blood vessel by an embolus that has broken away from a thrombus.
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Overview Essential thrombocythemia is an uncommon disorder in which your body produces too many blood platelets. This condition may cause you to feel fatigued, lightheaded and to experience headaches and vision changes. It also increases your risk of blood clots.
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Macrocytosis Macrocytosis is the enlargement of red blood cells with near-constant hemoglobin concentration, and is defined by a mean corpuscular volume (MCV) of greater than 100 femtolitres (the precise criterion varies between laboratories).astrointestinal diseases that may cause macrocytosis include celiac disease (severe sensitivity to gluten from wheat and other grains that causes intestinal damage) and Crohn’s disease (inflammatory bowel disease that can affect any part of the gastrointestinal tract).
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Definitions &Translations Thrombopoietin. A humoral factor that stimulates the production of thrombocytes (BLOOD PLATELETS). Thrombopoietin stimulates the proliferation of bone marrow MEGAKARYOCYTES and their release of blood platelets. The process is called THROMBOPOIESIS.
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Thrombocytopenia (Low Platelet Count) Thrombocytopenia means a lower platelet count in the blood compared to the normal range. Thrombocytosis refers to a greater number of platelets compared to the normal range.he normal platelet count ranges between 150,000 and 450,000 per microliter (one-millionth of a liter). Although the number of platelets is decreased, their function may remain intact in most cases of thrombocytopenia.
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- Thrombocythemia and thrombocytosis. Essential thrombocythemia is a myeloproliferative disorder (see Essential Thrombocythemia) involving overproduction of platelets because of a clonal abnormality of a hematopoietic stem cell.
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- Essential thrombocytosis. Essential thrombocytosis (ET; also known as essential thrombocythemia, essential thrombocythaemia, primary thrombocytosis) is a rare chronic blood disorder characterised by the overproduction of platelets by megakaryocytes in the bone marrow. It may, albeit rarely, develop into acute myeloid leukemia or myelofibrosis.
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thrombocytopenia Definition. 1  Thrombocytopenia is an abnormal drop in the number of blood cells involved in forming blood clots. These cells are called platelets. 2  Thrombocytopenia is a blood disease characterized by an abnormally low number of platelets in the bloodstream. The normal amount of platelets is usually between 150,000 and 450,000 cells per microliter of blood. A microliter is an amount equal to one one-millionth of a liter (a liter is almost equal to a quart).
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The Function of Blood Platelets Updated February 18, 2017. Thrombocyte is another word for platelet, the blood cell that is responsible for normal blood clotting. The root thrombo means clot, and you will see it used with diseases and conditions that affect the platelets and blood clotting. Platelets originate from cells known as megakaryocytes, which are found in the bone marrow.
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- Freebase(0.00 / 0 votes)Rate this definition: Thrombolysis. Thrombolysis is the breakdown of blood clots by pharmacological means. It is colloquially referred to as clot busting for this reason. It works by stimulating fibrinolysis by plasmin through infusion of analogs of tissue plasminogen activator, the protein that normally activates plasmin.
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Thrombocytosis Thrombocytosis is typically discovered as an incidental laboratory abnormality when the complete blood count is obtained for some unrelated reason. When found, however, it creates an important diagnostic challenge. Thrombocytosis generally either is a reactive process (secondary thrombocytosis) or is caused by a clonal bone marrow (myeloproliferative) disorder; the latter category includes essential thrombocythemia.
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Thrombocytopenia Thrombocytopenia is any disorder in which there is an abnormally low amount of platelets. Platelets are parts of the blood that help blood to clot. This condition is sometimes associated with abnormal bleeding.
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thrombocytopenia Thrombocytopenia is a blood disease characterized by an abnormally low number of platelets in the bloodstream. The normal amount of platelets is usually between 150,000 and 450,000 cells per microliter of blood. A microliter is an amount equal to one one-millionth of a liter (a liter is almost equal to a quart).
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- Thrombocytopenia and thrombopenia refer to a disorder in which there is a relative decrease of thrombocytes, commonly known as platelets, present in the blood.A normal human platelet count ranges from 150,000 to 450,000 platelets per microliter of blood.hrombocytopenia and thrombopenia refer to a disorder in which there is a relative decrease of thrombocytes, commonly known as platelets, present in the blood.
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- Some causes of reactive thrombocytosis include. 1  Chronic inflammatory disorders (eg, RA, inflammatory bowel disease, TB, sarcoidosis, granulomatosis with polyangiitis) 2  Acute infection. 3  Hemorrhage. Iron deficiency. 4  Hemolysis. Cancer.  Splenectomy or hyposplenism.
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- (hī'pĕr-sī-thē'mē-ă), 1  The presence of an abnormally high number of red blood cells in the circulating blood. See also: polycythemia. 2  Synonym(s): hypererythrocythemia, polycythemia. [ 3 hyper- + G. kytos, cell, + haima, blood] 4  A condition characterized by an abnormally high number of red blood cells in the blood.