As the nonspecific clinical presentation of hypereosinophilic syndrome (HES) may mimic many multisystemic diseases, it often presents as a diagnostic challenge. Herein, we report the case of a 60-year-old man who presented with progressive heart failure symptoms and eosinophilia. Despite extensive diagnostic evaluation, no underlying cause was found. Transthoracic echocardiography revealed a large left ventricular thrombus, which is suggestive of hypereosinophilic cardiac involvement. The patient was started on steroids and responded clinically and haematologically.
Blood Cell Count ; Contrast Media ; chemistry ; Echocardiography ; Eosinophils ; cytology ; Flow Cytometry ; Heart Atria ; pathology ; Heart Diseases ; complications ; diagnostic imaging ; Heart Failure ; complications ; Heart Ventricles ; pathology ; Humans ; Hypereosinophilic Syndrome ; complications ; diagnostic imaging ; Male ; Middle Aged ; Motion ; Steroids ; therapeutic use ; Thrombosis ; complications ; diagnostic imaging ; Treatment Outcome