Fig. 1

The chest computed tomography scan showed a 3,5 cm thymoma (Part a). Patient was placed in left lateral decubitus position, with the surgeon and the assistant standing on the posterior side (Part b). Dissection was landmarked by the superior border of phrenic nerve (Part c). The thymus was retracted superiorly and medially; the superior vena cava and the ascending aorta were skeletonised (Part d). Right side thymic and perithymic fatty tissue dissection was completed and left lung visible (Part e). Closure of right incision with a chest drainage (Part f)