Occurrence of Subdural Hematoma Closely Associated with Danazol Administration in a Patient with Refractory ITP

Abstract

We reported a 34-year-old female patient with refractory idiopathic thrombocytopenic purpura (ITP) in whom a subacute subdural hematoma occurred without any preceding trauma during danazol administration which resulted in a marked decrease of plasma fibrinogen level. It is strongly suggested that danazol should be very carefully administered in ITP patients with serious bleeding tendency.