Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is top normal . A linear right lower lung density appears stable compared to the prior exam , likely secondary to scarring . There is bibasilar atelectasis . There is no focal area of consolidation . There has been a slight interval increase in vascular engorgement , without evidence of frank interstitial edema . There is no pneumothorax or pleural effusions . The heart size is normal . The hilar and mediastinal contours are normal .
    OUTPUT:
    
No acute abnormalities identified to explain patient 's fevers . Bibasilar atelectasis .