Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are normal . There is no pleural effusion or pneumothorax . Lungs are well - expanded and clear without focal consolidation concerning for pneumonia . Pulmonary vasculature is within normal limits . Pectus excavatum deformity again noted . The upper abdomen is unremarkable . Mild degenerative changes seen in the thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary process .