Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is slightly rotated to the right . The heart is moderately enlarged . The mediastinal contours unchanged since prior exams . A large hiatal hernia is redemonstrated . Lung volumes remain low . There is moderate compressive atelectasis . No definite consolidation is noted . No pulmonary edema or pneumothorax .
    OUTPUT:
    
No acute cardiopulmonary process . Large hiatal hernia is again seen .