Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are normally expanded . Opacity at the left costophrenic sulcus is unchanged since at least ___ . There is no new focal airspace opacity to suggest pneumonia . There is no pulmonary edema . The heart is not enlarged . Mediastinal and hilar contours are normal . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
No evidence of acute cardiopulmonary abnormality .