Unroofed coronary sinus, left-sided superior vena cava and mitral insufficiency: A case report and review of the literature

Figure 4 Preoperative computed tomography angiogram. A: The insertion site of the left superior vena cava (LSVC) is shown by an asterisk in the axial, sagittal and coronal views; B: The ostium of the coronary sinus indicated by the letter (o) is shown in the same three views; C: A three-dimensional reconstruction of the LSCV as it enters the left atrium. LSVC: Left superior vena cava; MPA: Main pulmonary artery; LAA: Left atrial appendage; LUPV: Left upper pulmonary vein.