Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The new left pleural catheter overlies the lung base . The left pleural effusion has significantly reduced with the left hemidiaphragm now visible . Right pleural effusion unchanged from 1 hour prior . Right subclavian central catheter is unchanged in satisfactory position . Stable cardiomediastinal silhouette . No pneumothorax .
    OUTPUT:
    
Interval placement of a pleural catheter at the left lung base with significant improvement in left pleural effusion and no pneumothorax .