Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild cardiomegaly is unchanged . Apparent mediastinal widening is also unchanged . There is no focal lung consolidation . There is no pleural effusion or pneumothorax . There is mild pulmonary vascular congestion stable to minimally improved . There is bibasilar atelectasis .
    OUTPUT:
    
Mild pulmonary vascular congestion , stable to possibly minimally improved . Persistent bibasilar atelectasis .