Fig. 2

Examples of imaging presentations of four patients with pulmonary thromboembolism (PTE). A A 66-year-old male with a diagnosis of idiopathic pulmonary fibrosis. CTPA showed pulmonary artery embolism in the middle lobe of the right lung and lower lobe of both lungs, and (B) HRCT exhibited subpleural honeycombing and reticular pattern with ground glass opacity changes. C A 57-year-old female with a diagnosis of cryptogenic organized pneumonia. CTPA showed embolism of the right and left main pulmonary arteries, and (D) HRCT exhibited ground glass opacity changes and mosaic attenuation. E A 53-year-old male with a diagnosis of HP and was in the intermediate-low risk group for pulmonary embolism. A filling defect was seen in the dorsal segment of the right lower lobe, and (F) HRCT showed thickened lobular septa, multiple small nodules in both lungs and irregular solid changes in the right upper lung. G A 59-year-old female with a diagnosis of Anti-Neutrophil Cytoplasmic Antibodies -associated vasculitis related ILD combined with pulmonary embolism in the intermediate-low risk group. CTPA demonstrated occlusion of the right lower pulmonary artery trunk and widening of the pulmonary arteries, and (H) HRCT showed multiple ground glass opacity in both lungs. Red arrows represent pulmonary emboli and yellow arrows represent ILD changes (honeycombing, reticular, ground glass opacity, etc.). CTPA, CT pulmonary arteriography; HRCT, high resolution computed tomography; ILD, interstitial lung disease