Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: An endotracheal tube and left subclavian central venous catheter are in appropriate and stable position . There is increased opacification at the bilateral lung bases . On the left , there is increased size as a small - to - moderate left pleural effusion and underlying atelectasis . On the right , there is a focal airspace opacity in right lung base which may represent atelectasis or focal infection . A small right pleural effusion is not significantly changed from ___ . There is interval increased pulmonary vascular congestion . No pneumothorax is present . The cardiac silhouette remains top normal in size . The mediastinal contours are within normal limits and stable .
    OUTPUT:
    
1 . Interval development of focal opacity in the right lung base may represent atelectasis or infection . 2 . Increased small - to - moderate left pleural effusion from ___ . 3 . Increased mild pulmonary vascular congestion from ___ .