Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is airspace opacity in the lower lobes with air bronchograms seen . There is a small bilateral effusion , but no pneumothorax . The remainder of the lungs are clear . Pulmonary vasculature is normal . The cardiac silhouette is normal in size , the mediastinal contours are normal .
    OUTPUT:
    
Lower lobe atelectasis and small effusions .