Thrombotic thrombocytopenic purpura (TTP) associated with chromosomal aberration and treated with plasma exchange

: We reported a case of 69-year-old female presenting with clinically typical TTP which was treated with Ticlopidine and plasma exchanges four times in total and resulted in successful improvement of her clinical state. The first chromosomal analysis of lymphocytes in the peripheral blood of the patient revealed abnormal patterns of 45, XO/46, XX/47, XXX, the second, 45, XO/46, XX/47, XXX/47.XX, + 21. Measurement of FITC-labelled fibrinogen antibody against the fibrinogen combined with platelet glycoprotein GP IIb/IIIa complex using flow cytometry showed an apparently increased positive rate 76.2% for the platelet of the patient, compared with that of 31.9% for the control. From the comparative study of the platelet agglutination of the platelet rich plasma (PRP) derived from the citrated-added complete blood taken from the patient to whom Ticlopidine was given, added with adenosine-5'-diphosphate (ADP), collagen or acetyl glyceryl ether phosphoryl choline (AGEPC) as the reagents and that of normal control, it was shown that for AGEPC increased. Thus, increased reaction specific to AGEPC in addition to activated platelet was demonstrated in the present study.