Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Bilateral multifocal opacities are unchanged since the prior study . Cardiomediastinal silhouette is also unchanged . There is no pneumothorax or new areas of focal consolidation . There is no significant pleural effusion .
    OUTPUT:
    
Unchanged bilateral multifocal opacities likely representing pulmonary edema , however aspiration is also possible . No change since the prior study .