Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is mild cardiomegaly and a large hernia containing stomach causing streak - like atelectatic change at the right lower lobe . Incidental note is made of an azygos lobe at the right side . No pleural effusion and no pneumothorax .
    OUTPUT:
    
No acute cardiothoracic process . Large hiatal hernia containing at least stomach .