Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are stable , with mild cardiomegaly . Bilateral moderate - sized pleural effusions with compressive atelectasis of the lung bases are unchanged since the prior study . Mild degree of pulmonary edema is present . A left sided pacing device is seen with leads in expected position of the right atrium and right ventricle .
    OUTPUT:
    
Bilateral moderate - sized pleural effusions with compressive atelectasis of the lung bases . Mild pulmonary edema .