Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest demonstrate the lungs are well expanded and clear . Mild leftward deviation of the trachea is noted . The cardiomediastinal silhouette is unremarkable . There is no pleural effusion , pneumothorax , pulmonary edema , or focal airspace opacity . No acute osseous abnormality is detected .
    OUTPUT:
    
No acute cardiopulmonary process .