Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right - sided Port - A - Cath tip terminates in the low SVC . Heart size is normal . Known mediastinal mass seen on outside imaging is not well assessed on this current radiograph , although there is suggestion of narrowing of the central airways , as seen on the prior CT . Lungs are hyperinflated with emphysematous changes noted in the apices . No focal consolidation , pleural effusion or pneumothorax is present . Compression deformity of a vertebral body at the thoracolumbar junction is unchanged from the prior CT examination where it was demonstrated to be a pathologic fracture .
    OUTPUT:
    
Known mediastinal mass is better assessed on previous CT . Emphysema . No pneumonia .