Magnetic resonance imaging for endomyocardial fibrosis.

Magnetic resonance images (MRI) of a pediatric patient with endomyocardial fibrosis secondary to idiopathic hypereosinophilic syndrome are presented. Previously reported in adults, MRI findings of endomyocardial fibrosis in this case include right ventricular diastolic dysfunction, mild systolic dysfunction and extensive subendocardial delayed contrast enhancement. Right atrial enlargement and organized right ventricular thrombus are also demonstrated.