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Dubin Johnson Syndrome associated with defective ristocetin – induced platelet agglutination

Hematology & Transfusion International Journal
Samar Mohamad Elfiky, Shaimaa Ismail Sahmoud


Background: This is the first reported case of platelet aggregation defect in association with Dubin-Johnson Syndrome. Case presentation: We reported a 14 months old female infant with recurrent attacks of mild to moderate ear and nose bleeding and moderate amount of subarachnoid hemorrhage with ristocetin induced platelet agglutination other than Von Willebrand Factor disease and Bernard–Soulier syndrome. The patient also had fluctuating bilirubin level (Maximum of 15 mg/dl) and remaining liver function tests were normal; the patient diagnosed as Dubin Johnson Syndrome by liver biopsy. Conclusions: Dubin-Johnson Syndrome may be associated with platelet aggregation defect.


Dubin-Johnson Syndrome, platelet aggregation defect