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Case Reports in Medicine
Volume 2011, Article ID 953890, 5 pages
Case Report

Thrombotic Thrombocytopenic Purpura Associated with Mixed Connective Tissue Disease: A Case Report

1Faculdade de Medicina de Campos, 28035-580, Campos dos Goytacazes, RJ, Brazil
2Hospital Ferreira Machado and Hospital Geral de Guarus, Campos dos Goytacazes, RJ, Brazil

Received 19 March 2011; Revised 10 July 2011; Accepted 13 July 2011

Academic Editor: G. Pineo

Copyright © 2011 João Tadeu Damian Souto Filho et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Thrombotic thrombocytopenic purpura (TTP) is a multisystemic disorder characterized by microangiopathic hemolytic anemia and thrombocytopenia, which may be accompanied by fever, renal, or neurologic abnormalities. Cases are divided into acute idiopathic TTP and secondary TTP. Autoimmune diseases, especially systemic lupus erythematosus, in association with TTP have been described so far in many patients. In contrast, TTP occurring in a patient with mixed connected tissue disease (MCTD) is extremely rare and has only been described in nine patients. We describe the case of a 42-year-old female with MCTD who developed thrombocytopenia, microangiopathic hemolytic anemia, fever, and neurological symptoms. The patient had a good clinical evolution with infusion of high volume of fresh frozen plasma, steroid therapy, and support in an intensive care unit. Although the occurrence of TTP is rare in MCTD patients, it is important to recognize TTP as a cause of thrombocytopenia and hemolytic anemia in any patient with autoimmune diseases. Prompt institution of treatment remains the cornerstone of treatment of TTP even if plasma exchange is not available like what frequently happens in developing countries.