Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest show no pleural effusion , pneumothorax or focal airspace consolidation . The cardiac and mediastinal contours are normal . There is a hiatal hernia . The cardiomediastinal contours are normal . The hilar structures are unremarkable .
    OUTPUT:
    
No acute cardiopulmonary process .