Fig. 2

Pulmonary artery involvement (PAI) and nontuberculous mycobacteria (NTM) disease imaging on computed tomography. Patient 1: occlusion of the right upper and middle pulmonary arterial branches (a) and a large opacity with a cavity in the right lower lobe and ill-defined nodules in bilateral lungs (b). Patient 2: occlusion of the right main pulmonary artery (c) and a large opacity in the right lower lobe (d). Patient 3: occlusion of the right upper and middle pulmonary artery branches (e) and a large opacity with a cavity in the right lung (f). Patient 4: dilation of the left pulmonary artery branches (g) and ill-defined nodules in the left upper lobe (h). Patient 5: occlusion of the left main pulmonary artery before developing NTM disease (i) and ill-defined nodules in the left lung (j). The left and right images of patients 2, 3, and 4 were taken simultaneously, since the previous images were not available. Patient 6 did not have PAI. Therefore, the images are not presented