Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes are present . Heart size is accentuated as a result , appearing borderline enlarged . Mediastinal and hilar contours are unremarkable . Pulmonary vasculature is not engorged . Patchy opacities in lung bases likely reflect areas of atelectasis in the setting of low lung volumes . No focal consolidation or pneumothorax is present . Minimal blunting of the right costophrenic angle suggests a trace right pleural effusion . No acute osseous abnormalities demonstrated . Pneumobilia is seen in the right upper quadrant of the abdomen .
    OUTPUT:
    
1 . Low lung volumes with probable bibasilar atelectasis . 2 . Pneumobilia .