Fig. 2

Pulmonary CTA findings. Axial thoracic CTA shows two irregular high-density nodules in the middle of right lung, maximum cross section 2.1 cm × 2.1 cm (a); (b) MIP and (c) VRT confirm PAVFs (red arrow). CTA, computed tomography angiography; MIP, maximum intensity projection; VRT, volumetric reproduction technique; PA, pulmonary artery; PV, pulmonary venous