Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild hyperexpansion of the lungs is again seen . Mild right upper lobe opacity is identified , likely postprocedural in nature . No pneumothorax , focal consolidation , or pleural effusions .
    OUTPUT:
    
Postprocedural changes in the right upper lobe , without evidence of pneumothorax .