Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild cardiomegaly is unchanged . Lung volumes are low . There is no pleural effusion , pneumothorax , or focal consolidation . Minimal pleural thickening is unchanged . Small hiatal hernia is identified , as seen on the CT chest from ___ .
    OUTPUT:
    
No acute cardiopulmonary process .