Auszug

An 18-year-old woman presented to our outpatient clinic with lightheadedness and dyspnea. She had no history of fever and systemic or pulmonary embolism. Her medical history was unremarkable. There was no pretibial edema, ascites, or jugular venous distension on inspection. Cardiac auscultation was normal. Her heart rate was regular and blood pressure was 110/80 mmHg. Blood biochemistry test results were normal. An electrocardiogram demonstrated normal sinus rhythm and her chest x-ray was also normal. Transthoracic echocardiography (TTE) revealed a 6.5 × 5.2-cm round mobile mass on the atrial side of the right heart originating from the interatrial septum and circumferencing the septal leaflet (Abb. 1, Video 1). In each diastole, the mass protruded into the right ventricle, obstructing the tricuspid inflow significantly (mean transvalvular tricuspid gradient, 5 mmHg) (Abb. 2). Cardiac computed tomography (CT) confirmed these findings showing a difference in density between the heart muscle and the mass (Abb. 3). The patient underwent open heart surgery and the tumor was successfully resected. The pathological diagnosis was myxoma, and the postoperative clinical course of the patient was uneventful. …