Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are normally expanded and clear . The heart is not enlarged . The mediastinal and hilar contours are normal . There is no pleural effusion or pneumothorax . Rightward curvature of the lower thoracic spine is unchanged . There is no pulmonary edema .
    OUTPUT:
    
No evidence of pneumonia or other acute cardiopulmonary abnormality .