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KMID : 0882420110810020251
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Korean Journal of Medicine
2011 Volume.81 No. 2 p.251 ~ p.256
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A Case of Pulmonary Thromboembolism in a Patient with Idiopathic Thrombocytopenic Purpura
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Kim Seung-Kyoung
Kang Ji-Young
Choi Seung-Hwa
Hong Yu-Ah
Kim Jin-Seok
Kim Sei-Won
Song Jung-Sup
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Abstract
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Idiopathic thrombocytopenic purpura (ITP) is an autoimmune blood disorder characterized by thrombocytopenia. Common clinical manifestations include bleeding events. Rarely, thrombotic complications may develop in ITP. A 43-year-old man was admitted with dyspnea. His platelet count at admission was 48,000/mm3. The patient had a history of ITP diagnosed 12 years earlier and had been treated with low-dose steroids. Two months before admission, he had been diagnosed with deep vein thrombosis and treated only with clopidogrel due to severe thrombocytopenia. Chest computed tomography showed filling defects in both pulmonary arteries. In the workup for precipitating factors, only lupus anticoagulant was positive. The concomitant administration of warfarin and methylprednisolone was used to treat the pulmonary thromboembolism and ITP, respectively. Six months later, the lupus anticoagulant test remained positive. The patient was confirmed to have a pulmonary thromboembolism due to antiphospholipid syndrome, which might be related to the underlying ITP. After 10 months, his symptoms and radiological findings had improved.
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KEYWORD
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Antiphospholipid syndrome, Lupus coagulation inhibitor, Pulmonary embolism, Purpura thrombocytopenic idiopathic
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