Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest demonstrates the lungs are well - expanded and clear . The cardiomediastinal silhouette is unremarkable . The hilar and pleural contours are normal in appearance . There is no evidence of pleural effusion , pulmonary edema or pneumothorax .
    OUTPUT:
    
No acute cardiopulmonary process .