Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lines and Tubes : Tracheostomy tube in unchanged position . EKG leads overlie the chest wall . Lungs : Lower lung volumes . Persistent , unchanged left lower lobe opacity comprising of atelectasis and / or consolidation . Stable mild haziness in the right lower lobe . Pleura : Unchanged moderate left pleural effusion . Left - sided chest tube is not clearly visualized owing to underpenetration . Mediastinum : Stable cardiomediastinal silhouette with unchanged cardiomegaly . Bony thorax : Unchanged
    OUTPUT:
    
Low lung volumes with unchanged left pleural effusion and underlying atelectasis and / or consolidation . Mild interval improvement in right lower lobe atelectasis .