Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable view of the chest . Correlation is made to previous exam from ___ . There is stable left basilar opacity which silhouettes the hemidiaphragm , potentially due to any combination of effusion and atelectasis or consolidation . Linear opacity at the right lung base is suggestive of atelectasis . Tracheostomy tube is in stable position . Cardiac silhouette is stable as are the osseous and soft tissue structures .
    OUTPUT:
    
No significant interval change . Left basilar opacity , potentially due to atelectasis , effusion ; however , consolidation from infection is not excluded .