Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . Left upper lung surgery is again noted with clips and chain sutures at the left hilum . The lungs are clear of consolidation . There are trace bilateral effusions . Cardiomediastinal silhouette is stable . Osseous structures demonstrate no acute abnormality .
    OUTPUT:
    
Trace bilateral effusions . No overt pulmonary edema .