Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomediastinum silhouette is stable . Biventricular pacer / ICD device is stable in position . A prosthetic aortic valve and sternotomy wires are unchanged in configuration . There is interval removal of the enteric tube , endotracheal tube , and mediastinal drain . Increased opacification at the bases and lower lung volumes is related to atelectasis . Lungs are clear . No large effusion . A small right apical pneumothorax is present .
    OUTPUT:
    
1 . Small right apical pneumothorax . 2 . Increased bibasilar opacification , post endotracheal tube removal is likely related to atelectasis .