Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral radiographs of the chest were acquired . There is volume loss on the right with associated elevation of the right hemidiaphragm , consistent with the provided history of prior right upper lobectomy . Pleural densities along the right upper lateral chest wall are not significantly changed . Similarly , opacity at the right apex along the superior mediastinum is not significantly changed , possibly loculated fluid in the pleural space . There is no focal consolidation concerning for pneumonia . There is no left pleural effusion . No definite pneumothorax is seen . There is evidence of prior right thoracotomy , involving the right posterior sixth rib . Cervical fusion hardware is incompletely assessed .
    OUTPUT:
    
1 . No significant interval change . 2 . Post - surgical changes on the right , as described above .