Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomediastinal silhouette is unremarkable . Opacities at the right lung base in the retrocardiac region are new . Severe degenerative change at the right glenohumeral joint is unchanged . There is no pneumothorax .
    OUTPUT:
    
New right lung base and retrocardiac opacities are concerning for pneumonia .