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Thrombotic thrombocytopenic purpura concomitant with autoimmune thyroiditis

Author(s): Ali Bay | Ali Seçkin Yalçın | Göksel Leblebisatan | Enes Coşkun | Ünal Uluca | Hatice Uygun | Mehmet Yılmaz

Journal: Dicle Medical Journal
ISSN 1300-2945

Volume: 38;
Issue: 4;
Start page: 503;
Date: 2011;
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Keywords: Thrombotic thrombocytopenic purpura | autoimmune thyroiditis | thrombocytopenia | adolescent

Thrombotic thrombocytopenic purpura (TTP) is characterized by disseminated thrombotic occlusions located in the microcirculation, microangiopathic hemolytic anemia, thrombocytopenia, fever, and renal and neurologic abnormalities. A 14 year old girl admitted to our hospital complaining bruising on her body and prolonged menstrual bleeding. On her physical examination there were very common bruising on four extremities. On the laboratory studies, Hemoglobin was 9 g/dL; Hematocrit, 24%; white blood count 11600/mm3 and thrombocyte count, 9.000/mm3. According to these findings our first diagnose was idiopatic thrombocytopenic purpura so intravenous immunoglobulin was given to patient for two days. Bone marrow aspiration was performed because of persisting thrombocytopenia despite two days IVIG therapy. Increased number of megakaryocytes was seen in bone marrow. Some accompanying symptoms like headache, numbness in per oral region and extremities, difficulty in speaking, and fluctuation in consciousness for short time occurred. The patient was reevaluated; because thrombocytopenia persisted and some neurological symptoms was observed. Due to these findings we thought that TTP was the diagnosed and plasma exchange was started. Increase was seen in platelet count in the second days of treatment. TTP should be considered in children presenting with atypical thrombocytopenia.
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