Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size remains mildly enlarged . The aortic knob is calcified . The mediastinal and hilar contours are unremarkable . Increased interstitial markings are again noted diffusely , likely reflective of a chronic interstitial abnormality and appear unchanged there has been interval development of bilateral lung masses and nodules , with the largest lesion in the left upper lobe measuring up to 3 .4 cm and a second lesion in the right upper lobe measuring up to 3 .2 cm . Patchy opacities in the lung bases may reflect areas of atelectasis . A small left pleural effusion is likely present . Probable mild pulmonary vascular congestion is present . No pneumothorax is demonstrated .
    OUTPUT:
    
Interval development of bilateral pulmonary nodules and masses concerning for metastatic disease . Bibasilar opacities likely atelectasis . Chronic interstitial abnormality as seen previously . Probable mild pulmonary vascular congestion .