Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Endotracheal tube , esophageal catheter , and central venous catheter appear similarly positioned . Sternal wires appear intact . Valve replacement hardware is noted . Compared to exam 2 days prior , there is slightly decreased congestion and edema , which is still severe . Left lower lobe volume loss persists .
    OUTPUT:
    
Slightly decreased congestion and edema , which is still severe .