Abstract Thrombotic thrombocytopenic purpura (TTP) is an unusual complication of systemic lupus erythematosus (SLE). Although the reported association between SLE and TTP is increasing, a few cases do improve without plasmatherapy. We report a case of TTP which was successfully treated without plasmatherapy, which might be underestimated as an etiology of thrombocytopenia in SLE. TTP should always be considered as a concomitant disease when Coombs' negative hemolytic anemia or thrombocytopenia is seen in SLE patients.
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