Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal contour is unchanged compared to the prior study . No lobe were consolidation , pneumothorax or pleural effusion seen . Lung volumes are within normal limits . The trachea is central . No free air under the diaphragm .
    OUTPUT:
    
No acute cardiopulmonary process seen . No significant interval change when compared the prior study .