Fig. 1

Preoperative imaging. a Transthoracic echocardiography shows a 36 × 30 mm mass in the right ventricular outflow tract. b Contrast-enhanced computed tomography of the chest shows a contrast defect around the pulmonary valve with a bifurcated morphology. There is minimal staining in the early contrast phase but slightly contrasted in the delayed phase. *PA, pulmonary artery; RA, right atrium; RV, right ventricle