Unilateral Pulmonary Vein Atresia Initially Presenting as Interstitial Lung Disease in an Elderly Female: Serial Chest Radiograph Changes and Its Literature Review

Fig. 1. Radiologic findings of unilateral pulmonary vein atresia in a 62-year-old female, presenting as unilateral interstitial lung disease. A. Axial image of the mediastinal window demonstrates a significant size discrepancy between the RPA and LPA. Apparent pleural thickening is noted along the right lung lateral margin. The hypertrophied hilar branch of the bronchial artery is noted (arrowheads). B, C. Lung window setting images show unilateral diffuse ground-glass opacities, reticulation, and traction bronchiectasis, with right lung volume loss. D. Serial chest radiographs taken in 2008, 2016, and 2020 (images from left to right). Initial chest radiograph (left) shows a small right hemithorax with right mediastinal shifting and diminished vessel size in the right lung. Right-mid and lower-zonal linear infiltration, reticular infiltration, and ground-glass opacities are visible. The follow-up chest radiograph (middle) demonstrates increased extent of linear, reticular infiltration, and ground-glass opacities with basal predominance in the right lung. The last follow-up chest radiograph (right) reveals progression of the reticular infiltrates, ground-glass opacities, and…