Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are slightly hyperinflated . The lungs are clear without focal consolidation , pleural effusion or pneumothorax . The pulmonary vasculature is not engorged . The cardiomediastinal and hilar contours are stable with top normal heart size and mild calcification of the aortic knob . No acute osseous abnormality is detected . A compression fracture deformity of the lower thoracic spine is unchanged from ___ .
    OUTPUT:
    
No acute intrathoracic process .