Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate unremarkable cardiomediastinal and hilar borders . Lung volumes are low . Lungs are clear . No pleural effusion or pneumothorax . No pneumoperitoneum identified . No fracture identified . Flowing anterior osteophytes noted in the thoracic spine .
    OUTPUT:
    
No acute intrathoracic process . No pneumoperitoneum .