Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are minimally hyperexpanded There is no evidence of focal consolidation , pleural effusion , pneumothorax , or pulmonary edema . The cardiac silhouette is top - normal in size . Right acromioclavicular joint degenerative changes have slightly progressed from the prior examination .
    OUTPUT:
    
Minimally hyperexpanded lungs without evidence for superimposed pneumonia .