Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are normally expanded and clear . The heart is top - normal . The mediastinal and hilar contours are normal . There is no pleural effusion , pneumothorax or pulmonary edema . Rightward curvature of the thoracic spine is unchanged .
    OUTPUT:
    
No pulmonary edema or pneumonia .