Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild to moderate enlargement of the cardiac silhouette is unchanged . The mediastinal contour is similar with mild unfolding of thoracic aorta again noted . There is mild pulmonary vascular congestion , minimally improved from the previous exam . No focal consolidation or pneumothorax is seen , however assessment of the lung apices medially is slightly limited by the patient 's neck and chin projecting over this area . Small bilateral pleural effusions are noted . No subdiaphragmatic free air is visualized . A TIPS catheter within the right upper quadrant of the abdomen is again noted .
    OUTPUT:
    
Mild pulmonary vascular congestion and small bilateral pleural effusions . No subdiaphragmatic free air .