Figure and video legend:
Figure 1, LPA: axial view of chest CT- scan demonstrated 83×34 mm cystic lesion in middle mediastinal juxta pericardial with thick wall anterior to LPA; the mass is marked with a star in the photos.
Video 1, LPA: Intera-operatively, the cystic mass arising from LPA extended to left atrium hilum and caused compression on LPA were observed. The mass is under the surgeon’s hand and the surgeon is dissecting the mass from the pulmonary vein.