Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low bilateral lung volumes with no significant change in the bibasilar opacities reflective of atelectasis and / or consolidation . A small right pleural effusion is suspected . No pneumothorax identified . There is mild pulmonary vascular congestion . The size and appearance of the cardiomediastinal silhouette is unchanged . A feeding tube extends into the stomach . Degenerative changes of the right glenohumeral joint .
    OUTPUT:
    
Unchanged bibasilar opacities which may reflect atelectasis and / or consolidation . Mild pulmonary vascular congestion .