Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs are hyperinflated and appears clear . There is no focal consolidation , pulmonary edema , pleural effusion , or pneumothorax . There is some mild retrocardiac atelectasis . The cardiomediastinal silhouette and hilar contours are normal .
    OUTPUT:
    
Hyperinflated lungs without evidence of acute cardiopulmonary process .