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THROMBOCYTOPAENIA |
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non-immunologic platelet consumption or destruction: |
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disseminated intravascular coagulation microangiopathic haemolytic anaemia haemangiomas mechanical destruction (prosthetic valves, vascular prosthesis) |
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autoimmune destruction (anti-platelet antibodies present): |
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idiopathic thrombocytopaenic purpura systemic lupus erythematosus lymphoma drug-induced autoimmune thrombocytopaenia (heparin, sulphas)HIV-related |
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infections: |
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measles HIV |
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decreased bone marrow production: |
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any condition infiltrating or destroying bone marrow: malignancies, especially haematological |
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(with pancytopaenia)
paroxysmal nocturnal haemoglobinuria alcohol |
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platelet sequestration: |
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hypersplenism [various causes] |
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dilutional: |
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multiple blood transfusions |
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