Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lines and Tubes : Status post extubation and removal of mediastinal drains , chest tubes and Swan - Ganz catheter . EKG leads overlie the anterior chest wall . Lungs : Lung volumes remain low . Linear left lower lobe opacities and an unchanged dense right lower lobe opacity likely represent atelectasis . Pleura : Unchanged right pleural effusion . There is no pneumothorax . Mediastinum : Stable mild cardiomegaly . Prominent hilar vasculature also noted as before . Bony thorax : No significant interval change . Sternotomy sutures are noted in the midline .
    OUTPUT:
    
Status post extubation , removal of mediastinal drains chest tubes and Swan - Ganz catheter . There is no pneumothorax . The lung volumes remain low with unchanged right pleural effusion and bibasilar atelectasis .