operative axial CT scan showing the origin of LMCA from pulmonary artery.](gcsp-0000-00-000-g000){#fig0}  ![Postoperative axial CT scan showing the origin of LMCA from the aorta after it\'s re-implantation.](gcsp-0000-00-000-g000){#fig0}  ![Preoperative coronal section of CT scan showing the origin of LMCA from pulmonary artery.](gcsp-0000-00-000-g000){#fig0}  ![Postoperative coronal section of CT scan showing the origin of LMCA from the aorta after it\'s re-implantation.](gcsp-0000-00-000-g000){#fig0}  ![Preoperative 