Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiographs were provided . The right internal jugular central line terminates at the cavoatrial junction . There is no focal consolidation or pneumothorax . Left pleural effusion is unchanged since the prior exam . Right basilar atelectasis has improved . Cardiomediastinal silhouette is unchanged .
    OUTPUT:
    
Stable left pleural effusion .