Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal radiograph of the chest demonstrates no evidence of free mediastinal air . There is no widening of the mediastinum . The lungs are well expanded . There is no evidence of acute cardiopulmonary process . The cardiomediastinal silhouette is unchanged .
    OUTPUT:
    
No pneumothorax or pneumomediastinum . Otherwise , unremarkable chest radiograph . The above findings were communicated to Dr . ___ by Dr . ___ ___ page at 11 :05 , five minutes after discovery was made .