Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac size is top - normal . There is persistent thickening of the right paratracheal stripe . There is an unusual appearance of the left hilum could be consolidation , and / or lymphadenopathy . Nodular opacity seen in prior radiograph is not visualized . There is no pneumothorax or pleural effusion . There are moderate degenerative changes in the thoracic spine .
    OUTPUT:
    
Persistent abnormal appearance of the mediastinal and left hilum CT is recommended for further evaluation