Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The inspiratory lung volumes are decreased from the most recent prior study . Increased opacification of the bilateral bases is likely reflective of atelectasis in the post-operative setting of low lung volumes . Prominent lung markings raise the possibility of chronic lung disease . Small bilateral pleural effusions are present . No pneumothorax is detected . The cardiac silhouette is likely within normal limits allowing for low lung volumes . No overt pulmonary edema is present . Calcified hilar and mediastinal lymph nodes are re-demonstrated , compatible with sequela of known sarcoidosis . Multiple healed right posterior rib fractures are again noted .
    OUTPUT:
    
1 . Bibasilar opacities most likely represent atelectasis in the post-operative setting of low lung volumes . Small pleural effusions . 2 . Stable calcified hilar and mediastinal lymph nodes compatible with known sarcoidosis . 3 . Suggestion of chronic lung disease .