Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . Apparent mediastinal widening is likely due to patient rotation . There is mild to moderate bibasilar atelectasis . Small bilateral pleural effusions are probable . The cardiac size is stable and there is mild pulmonary vascular congestion , without frank pulmonary edema . There is no pneumothorax . Chronic rib and pleural deformities are again noted .
    OUTPUT:
    
Mild to moderate bibasilar atelectasis and probable small bilateral pleural effusions .