Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . Heart size is accentuated as result appearing mildly enlarged . The mediastinal and hilar contours are normal . Pulmonary vasculature is not engorged . Patchy opacities in the lung bases likely reflect areas of atelectasis . No focal consolidation , pleural effusion or pneumothorax is identified . No acute osseous abnormality is visualized .
    OUTPUT:
    
Low lung volumes with patchy bibasilar opacities , likely atelectasis .