Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with chest radiograph from ___ , lung volumes are somewhat lower . There is no focal consolidation , pleural effusion or pneumothorax . There is no vascular congestion or pulmonary edema . Mediastinal and hilar contours are stable . Heart size is normal . Moderate hiatal hernia . There are severe degenerative changes of the right shoulder . Bilateral healed rib fractures are seen .
    OUTPUT:
    
1 . No acute intrathoracic process . 2 . Moderate hiatal hernia .