Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are normally expanded and clear . There is mild cardiomegaly . The mediastinal and hilar contours are normal . There is no focal airspace opacities suggestive of pneumonia . Small right pleural effusion may be present . There is no pneumothorax . There is no pulmonary edema .
    OUTPUT:
    
Stable mild cardiomegaly . No evidence of acute cardiopulmonary abnormality .