Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is been interval worsening appearance of the lungs bilaterally with increased alveolar infiltrates most marked laterally and in the lower lungs it 's unclear how much of this is due to pulmonary edema or even underlying infectious infiltrate is present . The heart disease to mildly enlarged . There is no pneumothorax .
    OUTPUT:
    
Worsened appearance of the chest either due to edema or infection .