Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . No focal consolidation , pleural effusion , or pneumothorax is seen . The cardiac and mediastinal silhouettes are stable and unremarkable as are the hilar contours . The lungs again are hyperexpanded .
    OUTPUT:
    
Hyperexpanded , but clear lungs . No significant interval change .