Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: No significant interval change . The lungs are well - expanded . No focal consolidation , edema , effusion , or pneumothorax . The heart is top - normal in size , unchanged . Mediastinal and hilar contours are unchanged . No acute osseous abnormality .
    OUTPUT:
    
No pneumothorax . No acute cardiopulmonary process .