Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral images of the chest . Lungs well expanded and clear . There is no pleural effusion or pneumothorax . The cardiomediastinal silhouette is unremarkable . There is a large diaphragmatic hernia , which contains at least stomach and probably bowel , as bowel was seen in this location on prior CT . Degenerative changes are seen in the humeral heads bilaterally .
    OUTPUT:
    
1 . No acute cardiopulmonary process . 2 . Large diaphragmatic hernia containing stomach and probably bowel , as bowel was seen in this location on prior CT . This puts the patient at risk for complicatiosn of bowel herniation .