Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Scarring along the right mediastinal border is consistent with postradiation change , not significantly changed from prior radiograph . No focal consolidation , effusion or pneumothorax is present . Cardiomediastinal silhouette is unchanged . Elevation of the right hemidiaphragm is also unchanged . There is no evidence of pulmonary vascular congestion . A rounded density in the left hila likely represents a pulmonary vesse ; l however , it has a slightly different appearance from the prior radiograph .
    OUTPUT:
    
1 . No evidence of pneumonia . 2 . Rounded density in the left hila likely represents a pulmonary vessel ; however , has a slightly different appearance from the prior . Could consider oblique radiographs to further clarify .