Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral chest radiographs were obtained . The lungs are well expanded with mild pulmonary edema which while improved from ___ is greater than baseline . Trace accompanying right pleural effusion is noted . The cardiomediastinal silhouette is unchanged and unremarkable . Moderate bilateral acromioclavicular joint degenerative changes are noted .
    OUTPUT:
    
Mild pulmonary edema and trace right pleural effusion .