Abstract
Tricuspid stenosis is an uncommon valvular abnormality commonly associated with other valvular lesions. Ebstein’s anomaly is a rare congenital heart malformation characterized primarily by abnormalities of the tricuspid valve and right ventricle. Endomyocardial fibrosis is a restrictive cardiomyopathy observed in tropical and subtropical regions. It may cause right ventricular distortion with apparent apical displacement of the tricuspid valve, mimicking Ebstein’s anomaly. Eosinophilia is the most commonly cited aetiological link in endomyocardial fibrosis. Here we report the case of 42-year-old male patient who presented with heart failure and severe tricuspid stenosis where a diagnosis of hypereosinophilic syndrome was also established. This case represented a diagnostic challenge in the search for the definitive cause of the tricuspid stenosis.LEARNING POINTSEbstein’s anomaly is a rare congenital heart malformation characterized primarily by abnormalities of the tricuspid valve and right ventricle. The tricuspid valve is usually incompetent, and very rarely stenotic.Hypereosinophilic syndromes can be associated with heart damage. The fibrotic stage of eosinophil-mediated heart damage is characterized by altered cardiac function due to either compromise/entrapment of the cordae tendineae and/or restrictive cardiomyopathy.Endomyocardial fibrosis is a restrictive cardiomyopathy observed in tropical and subtropical regions that may be indistinguishable from the Loeffler’s endocarditis observed in temperate climates. It may cause right ventricle distortion and apical displacement of the tricuspid valve, mimicking Ebstein’s anomaly.
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