Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: One portable semi-erect view of the chest . There is a triangular - shaped opacity in the left hemidiaphragm that likely represents either pneumonia or atelectasis . There is also a new heterogeneous opacity in the right lung base that is either atelectasis or pneumonia . The upper lung zones are clear . An NG tube ends in the stomach and its last side port is near the EG junction . There is no pleural effusion or pneumothorax . The cardiac , mediastinal and hilar contours are normal . There is no pulmonary vascular congestion .
    OUTPUT:
    
1 . Bibasilar opacities either represent atelectasis or pneumonia . Correlate clinically . 2 . NG tube ends in the stomach with its last side port near the EG junction . Recommend advancing 2 - 3 cm .