Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: On the lateral , there is increased opacification overlying the lower thoracic spine , which is not definitively localized on the AP , but is concerning for developing pneumonia . Linear opacification within the left midlung likely represents atelectasis . Pulmonary vascular congestion , but no overt pulmonary edema . Stable enlargement of the cardiomediastinal silhouette . Small bilateral pleural effusions . No pneumothorax .
    OUTPUT:
    
1 . Increased opacification over the the lower thoracic spine , not definitively localized on the AP , but concerning for developing pneumonia . 2 . Pulmonary vascular congestion and small bilateral pleural effusions .