Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Upright PA and lateral radiograph of the chest . The lungs show mild bibasilar atalectasis but are otherwise clear . The cardiomediastinal silhouette , hilar contours and pleural surfaces are normal . There is no pleural effusion or pneumothorax . There is dextroconvex curvature centered over the lower thoracic spine . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Mild bibasilar atalectasis . Otherwise , unremarkable radiographs of the chest .