Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to the prior exam there is increased alveolar infiltrate left greater than right . There is moderate pulmonary edema . There bilateral pleural effusions left greater than right . It is unclear if this is asymmetric pulmonary edema which would be unusual given that this is left greater than right in appearance or if there is an infectious etiology .
    OUTPUT:
    
Worsened appearance to the lungs . Unclear if this is infectious or fluid overload .