Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is moderately enlarged . The aortic knob is calcified . There has been interval worsening of pulmonary edema now moderate in extent . No large pleural effusion or pneumothorax is identified . There are no acute osseous abnormalities .
    OUTPUT:
    
Interval worsening of congestive heart failure with moderate pulmonary edema .