Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Lungs appear hyperinflated with lucent upper lungs which could reflect emphysema . No convincing signs of pneumonia or edema . No large effusion or pneumothorax . The heart is normal in size . Mediastinal contours unremarkable . Bony structures are intact . No free air below the right hemidiaphragm . Clips are noted in the upper abdomen on the lateral projection .
    OUTPUT:
    
No acute intrathoracic process .