Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate normal cardiomediastinal silhouette . The lungs are clear . There is no pneumothorax , vascular congestion , or pleural effusion . There is no evidence of free air in the mediastinum . Moderate bridging osteophytosis is seen in the lower thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary process , such as pneumonia or free air .