Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate low lung volumes . Small bilateral pleural effusions are unchanged . Mediastinum appears widened , which is likely post - surgical , stable . Left upper lobe opacities persist , which likely reflect postsurgical changes . Right lung base consolidation is noted . Heart size is top normal . Left chest tube has been removed . There is no pneumothorax .
    OUTPUT:
    
Low lung volumes with small bilateral pleural effusions and bibasilar atelectasis . No pneumothorax .