Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . Mediastinal silhouette and hilar contours are unremarkable . Increased reticulation at the lung bases is suggestive of mild edema . Ovoid opacities in bilateral lower lung fields have no lateral correlate and likely represent nipple shadow . The lungs are otherwise clear . Pleural surfaces are clear without effusion or pneumothorax .
    OUTPUT:
    
Bibasilar reticulation is most suggestive of mild pulmonary edema though chronic interstitial lung disease remains a consideration .