Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The tip of the right PICC line extends into the superior cavoatrial junction . The tip of the endotracheal tube extends to the mid thoracic trachea . A gastric tube extends into the stomach . A well - defined density projects over the distal left main bronchus and may reflect the silicone plug . Low bilateral lung volumes with new predominantly bibasilar opacities , reflective of atelectasis / consolidation . The size of the cardiomediastinal silhouette is within normal limits . Calcification of the aortic arch is noted .
    OUTPUT:
    
A new well - defined density projects over the distal left mainstem bronchus and may reflect the silicone plug . New bibasilar opacities , reflective of atelectasis and / or consolidation