Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . There has been interval removal of a right - sided chest tube . No definite pneumothorax is identified . Again seen are right - sided thoracotomy changes . A right - sided catheter is seen , with the tip terminating in the right atrium . A left - sided central venous catheter is again seen , in stable position , terminating at the origin of the SVC . The cardiac silhouette is stably enlarged . Surgical clips are noted . Midline sternal wires are well aligned and intact . There is persistent left - sided pleural effusion . No edema is present .
    OUTPUT:
    
Interval removal of right chest tube without definite pneumothorax .