Essential thrombocythemia is a kind of myeloproliferative disorder characterized by primary elevation in the number of platelet and by multiple episodes of bleeding or thrombotic complications. Rarely, thrombocythemia itself causes coronary arterial occlusion and leads to ischemic heart disease. Fewer than twenty cases of coronary artery occlusive disease in thrombocythemia have been reported since Cheitlin et al had included thrombocythemia in their review of rare causes of myocardial infarction. We experienced a case of coronary artery disease in a 53-year-old woman with thrombocythemia, who had not coronary artery disese risk factors at all. Presence of multiple thrombus in the coronary artery was suggested in coronary angiography.
Angina, Unstable* ; Blood Platelets ; Coronary Angiography ; Coronary Artery Disease ; Coronary Vessels ; Female ; Hemorrhage ; Humans ; Middle Aged ; Myeloproliferative Disorders ; Myocardial Infarction* ; Myocardial Ischemia ; Risk Factors ; Thrombocythemia, Essential ; Thrombocytosis* ; Thrombosis

The idiopathic hypereosinophilic syndrome represent a heterogenous group of disorders with common features of prolonged eosinophilia of an undetectable cause and organ system dysfunction. Recently, we experienced a case of idiopathic hypereosinophilic syndrome with multifocal cerebral infarction. The patient was 33-year-old male and visited our hospital with right upper extremity weakness and headache. The blood eosinophil counts were 8,316/mma and the marrow showed eosinophils were predominant and in mature forms The two-dimensional echocardiogram showed hyperechoic density at left ventricular apical wall without thrombus formation. Multifocal infarctions were seen at left cerebellar hemisphere, left thalamus, right frontal lobe and left periventricular white matter on brain MRI scan. No cause for hypereosinophilia was found. He was treated with prednisone and hydroxyurea.
Adult ; Bone Marrow ; Brain ; Cerebral Infarction* ; Eosinophilia ; Eosinophils ; Frontal Lobe ; Headache ; Humans ; Hydroxyurea ; Hypereosinophilic Syndrome* ; Infarction ; Magnetic Resonance Imaging ; Male ; Prednisone ; Thalamus ; Thrombosis ; Upper Extremity