Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable chest radiograph demonstrates interval development of moderate pulmonary edema as demonstrated by increased interstitial fluid and central vascular congestion . Mild cardiomegaly is unchanged . Small bilateral pleural effusions are increased in size . There is no pneumothorax . An old left healed clavicular fracture is once again identified .
    OUTPUT:
    
Interval development of moderate pulmonary edema .