Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are no significant changes since the prior radiograph on ___ . The right Port - A - Cath terminates at the cavoatrial junction . There is an area of nodularity that obscures the distal right paratracheal stripe , which may be due to lymphadenopathy or other soft tissue lesion . It is unchanged since the ___ CXR , and likely corresponds to the focus of FDG avidity on the ___ PET - CT . No significant change in small right pleural effusion and adjacent atelectasis . The left lung is essentially clear . No pneumothorax or pneumomediastinum . Stable cardiomediastinal silhouette . No free air under the diaphragms .
    OUTPUT:
    
1 . No significant interval changes . 2 . Unchanged obscuration of right paratracheal stripe , may be due to lymphadenopathy or other soft tissue lesion .