Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is expected mild postoperative cardiomediastinal silhouette widening . There is mild left basilar atelectasis . No large effusion , pneumothorax or consolidation . Mild pulmonary vascular congestion , without edema . An endotracheal tube tip terminates approximately 4 .5 cm above the carina . A Swan - Ganz catheter terminates in the right main pulmonary artery .
    OUTPUT:
    
Minimal left basilar atelectasis . Lines and tubes in optimum position .