Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to chest radiographs from ___ , mild bibasilar atelectasis has improved . No focal consolidation . No large pleural effusion . No pneumothorax . Mediastinal and hilar contours are normal . Mild cardiomegaly is stable . DISH is noted in the thoracic spine .
    OUTPUT:
    
No evidence of pneumonia . Improved bibasilar atelectasis .