Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . The cardiomediastinal silhouette and hilar contours unremarkable . Vascular calcifications are noted along the aortic arch . The lungs are clear without focal consolidation , effusion or pneumothorax . No acute bony abnormality is identified .
    OUTPUT:
    
No acute intrathoracic process .