Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to the most recent prior in ___ , bilateral interstitial abnormality , most pronounced in the left lung has worsened . The cardiomediastinal contour is unchanged . There is no pneumothorax or pleural effusion . Diffuse distension of bowel loops and chronic elevation of the right hemidiaphragm , are similar to prior .
    OUTPUT:
    
Worsening bilateral interstitial abnormalities , left greater than right , represents pulmonary edema in the background of chronic interstitial lung disease .