Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes are again noted particularly on the right . There are bibasilar opacities potentially in part due to atelectasis . Rounded mass projecting over the right upper lung is again noted . There is also vague opacity projecting over the left mid lung just medial to the scapula . Cardiomediastinal silhouette is within normal limits . Severe degenerative changes noted at the right shoulder .
    OUTPUT:
    
Bibasilar opacities in part due to atelectasis although superimposed infection or aspiration are suspected . Unchanged right upper lung mass . Vague left midlung opacity which should be followed on subsequent exams