Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are again noted to be mildly hyperexpanded with flattening of the bilateral hemidiaphragms , compatible with mild COPD . No focal consolidation , pleural effusion , pneumothorax , or pulmonary edema is seen . The heart size is normal . Mediastinal contours are normal . No acute bony abnormality is detected .
    OUTPUT:
    
1 . No radiographic evidence for acute cardiopulmonary process . 2 . Mild COPD .