Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette and pulmonary vasculature are unremarkable . The lungs are clear . There is no pleural effusion or pneumothorax . There is no free air below the diaphragm . Again seen is dextroscoliosis of the thoracic spine .
    OUTPUT:
    
No acute intrathoracic process .