Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right IJ central venous catheter is unchanged with tip projecting over the cavoatrial junction . Multiple median sternotomy wires are re- demonstrated . Since the prior study , the enteric and endotracheal tubes have been removed . Additionally , the midline mediastinal drain has been removed . There are low lung volumes . The cardiomediastinal silhouette is stable . The hila are within normal limits . Left basilar atelectasis is minimally improved . There may be a trace left pleural effusion . There is no right pleural effusion . There is no focal lung consolidation , or pulmonary edema . There is no pneumothorax .
    OUTPUT:
    
1 . No evidence of pneumothorax status post chest tube removal . 2 . Unchanged low lung volumes and left basilar atelectasis . No new focal lung consolidation .