Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . Pulmonary vascular congestion is moderate . Retrocardiac opacity is unchanged . Endotracheal tube , mediastinal clips , sternal wires and orogastric tube are in unchanged position . A right internal jugular line is kinked in the subcutaneous tissues . The tip remains in the low SVC .
    OUTPUT:
    
Moderate pulmonary vascular congestion . Retrocardiac opacity may be atelectasis or consolidation depending on clinical context .