Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung is well inflated and clear , there is no consolidation or nodules . Cardiomediastinal silhouette is normal . There is no pneumothorax or pleural effusion . There is no evidence of subdiaphragmatic free air . Moderate air distention of the colon .
    OUTPUT:
    
Normal chest x-ray , moderate colon air distention without subdiaphragmatic free air .