Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . There is no focal consolidation . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are stable . There is mild - to - moderate compression of at least one vertebral body at the thoracolumbar junction , likely grossly stable since the prior study . A large hiatal hernia is again seen .
    OUTPUT:
    
No acute cardiopulmonary process .