Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . Mild to moderate enlargement cardiac silhouette is unchanged , accentuated by the presence of low lung volumes . The aorta remains tortuous . Mediastinal and hilar contours are stable . There is continued mild pulmonary vascular congestion without overt pulmonary edema . Patchy and linear opacities in the lung bases likely reflect areas of atelectasis . No pneumothorax or pleural effusion is clearly evident . Percutaneous gastrostomy catheter is incompletely imaged .
    OUTPUT:
    
Low lung volumes with mild pulmonary vascular congestion and bibasilar atelectasis .