Fig. 4From: Occlusion of the pulmonary artery by a primary pulmonary artery sarcoma resulting in cardiac arrest: a case reporta Pathological specimen, including the tumor, the left pulmonary artery (PA), and the left lung. b The cross section of the tumor was 1 cm in thickness. The mass protruded about 3 cm into the right PA and filled the left PABack to article page