Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest provided . Hyperinflated lungs with flattened diaphragms suggests underlying COPD . No focal consolidation , large effusion or pneumothorax is seen . The heart and mediastinal contours appear normal . Bony structures are intact .
    OUTPUT:
    
No acute intrathoracic process . Please refer to subsequent CTA chest for further details .