Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal hilar contours are stable . There is no pleural effusion or pneumothorax . Lungs are well hyperexpanded and clear without focal consolidation concerning for pneumonia . Linear atelectasis at the left lung base is present . There is no pulmonary edema .
    OUTPUT:
    
No acute cardiopulmonary process . Hyperinflation