Abstract : Pulmonary artery stenting is usually performed in congenital heart diseases and in cases of extrinsic compression due to a mediastinal tumor or fibrosis. We report one clinical case of a 61-year-old man treated by radiation and chemotherapy for T3N1M0 non-small cell lung carcinoma. He complained of disabling dyspnea. Pulmonary scintigraphy showed an absence of perfusion in the left lung. Chest computed tomography revealed a severe stenosis of the left pulmonary artery due to tumoral extrinsic compression. Under general anesthesia, we performed percutaneous angioplasty with self expandable nitinol stent. There was no peroperative complication. Dyspnea decreased immediately despite the natural course of the disease was not altered. Percutaneous stenting of pulmonary artery is safe and a feasible option for tumoral extrinsic compression. It is a palliative treatment but it can improve patient’s quality of life.