Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is volume loss of the right hemithorax , status post right lower lobectomy . There is mild scarring at the right lung base , with blunting of the costophrenic sulcus . Diaphragms also appear flattened on the lateral view , suggesting underlying chronic obstructive pulmonary disease . There is no parenchymal opacity to suggest pneumonia . There is no effusion or pneumothorax . The hilar and cardiomediastinal contours are essentially unremarkable . Small mediastinal lymph nodes and prominent pulmonary arteries are better evaluated on recent CT and not well seen radiographically . There is moderate thoracic spondylosis . No acute compression deformities .
    OUTPUT:
    
Postoperative change in the right hemithorax status post right lower lobectomy with underlying chronic obstruction pulmonary disease . Small mediastinal lymph nodes and prominent pulmonary arteries were better evaluated on recent CT . No radiographically apparent acute process .