Department of Medicine;
Atlantic Health System-Overlook Medical Center;
Summit;
NJ 07901;
United States;
Department of Cardiology;
Icahn School of Medicine;
Mount Sinai Heart at Mount Sinai Morningside;
New York;
NY 10025;
United States;
Department of Cardiology;
Atlantic Health System Overlook;
Summit;
NJ 07901;
United States;
Eosinophilic granulomatosis polyangiitis; Cardiac tamponade; Pericardial effusion; Mepolizumab; Peripheral eosinophilia; Pericardial biopsy; Case report;