Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to 1 day prior , this portable frontal chest radiograph appears largely unchanged with a right thorax catheter tip seen at the right pleural - based air pocket . The right lung appears unventilated and there is persistent remaining fluid filled pleural space . The left lung appears unchanged with no new opacifications . The cardiac silhouette is stable .
    OUTPUT:
    
No significant change .