Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest demonstrate the bilateral lungs are well - expanded and clear . The cardiomediastinal silhouette is unremarkable . The hilar and pleural surfaces are normal in appearance . There is no pleural effusion or pneumothorax . No focal opacity is identified within the lungs .
    OUTPUT:
    
No acute cardiopulmonary process .