Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear . Mediastinal widening with thickening of the right paratracheal stripe is noted . Prominence of the azygos silhouette is noted at the level of the arch . No large effusion or pneumothorax . Obscuration of the right heart border is secondary to a pectus excavatum . Heart is normal size . No pleural effusion or pneumothorax .
    OUTPUT:
    
Mediastinal prominence concerning for mediastinal adenopathy or mass for which CT is recommended to further assess .