Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild enlargement of the cardiac silhouette is present . The mediastinal and hilar contours are unremarkable . Mild pulmonary vascular congestion is noted without overt pulmonary edema . Patchy atelectasis is noted in the lung bases . No large pleural effusion or pneumothorax is present although the right costophrenic angle is excluded from the field of view . TIPS shunt catheter is noted in the right upper quadrant of the abdomen . No subdiaphragmatic free air .
    OUTPUT:
    
Mild pulmonary vascular congestion with mild atelectasis in the lung bases . No subdiaphragmatic free air .