Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Interval removal of the Swan - Ganz catheter with the sheath remaining in the right SVC . Endotracheal tube has been removed . Mediastinal drains and left - sided chest tube remains in similar position . No enlarging pneumothorax . Improved aeration of the lungs with decreasing bibasal and retrocardiac opacity . Mild pulmonary vascular congestion and moderate cardiomegaly persist .
    OUTPUT:
    
No enlarging pneumothorax post chest tube on water seal .