Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A left - sided single lead pacer / defibrillator is seen unchanged in position . Again seen is a moderate , partially loculated pleural effusion on the right , known right pleural thickening as well as multiple loculated right hydropneumothoraces . Extensive right lateral chest wall and neck subcutaneous emphysema is unchanged . Lung volumes are improved . There is a small left pleural effusion , which is not significantly changed . A hiatal hernia is again seen unchanged .
    OUTPUT:
    
1 . Moderate partially loculated right pleural effusion \with known pleural thickening and multiple loculated right hydropneumothoraces . 2 . Extensive right lateral chest wall and neck subcutaneous emphysema is unchanged . 3 . Small left pleural effusion .