Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison to the chest radiograph obtained 1 day prior , there has been interval removal of a pericardial drain . Heart size in cardia ___ mediastinal silhouettes are unchanged . Lungs are fully expanded and clear without focal consolidation . No pleural effusions or pneumothorax .
    OUTPUT:
    
Interval removal of pericardial drain , otherwise no significant changes . If concerned about pericardial effusion , echocardiogram is recommended .