Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Increased bilateral perihilar opacities concerning for pulmonary edema superimposed on chronic lung disease . No large pleural effusion is seen although trace pleural effusion would be difficult to exclude . No pneumothorax is seen . The cardiac silhouette is top - normal . Partially imaged gaseous distension of bowel in the upper abdomen .
    OUTPUT:
    
Increased bilateral perihilar opacities concerning for pulmonary edema superimposed on chronic lung disease . Partially imaged gaseous distension of bowel in the upper abdomen .