Arterial and venous thromboses in patients with idiopathic (immunological) thrombocytopenia: a possible contributing role of cortisone-induced hypercoagulable state.

Immunological thrombocytopenias, as other forms of thrombocytopenia, are associated with bleeding. Occasionally, these patients manifest thrombotic events. A total of at least 29 patients were reported to have had either arterial (20 cases) or venous (9 cases) thrombosis while platelet count was less than 50 × 10(3)/μL.