Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette is upper limits of normal in size , similar to recent chest radiograph of ___ , but slightly increased from the earlier radiograph of ___ . On the lateral chest radiograph , there are apparent small bilateral pleural effusions , new since ___ . Minimal adjacent basilar lung opacities are present . The remainder of the lungs are clear except for unchanged relatively symmetrical bi-apical scarring .
    OUTPUT:
    
Small bilateral pleural effusions with minimal adjacent basilar lung opacities , which likely reflect atelectasis . No definite pneumonia , but followup radiographs may be helpful if symptoms persist in order to exclude a subtle basilar pneumonia .