Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours appear stable . The lungs appear clear . Trace pleural effusions are suspected bilaterally . There is no pneumothorax . Narrowing among mid thoracic interspaces appears unchanged .
    OUTPUT:
    
Trace suspected pleural effusions but no evidence for pulmonary edema .