Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal AP upright and lateral radiographs of the chest were obtained . The left hemidiaphragm and left hilus are markedly elevated due to collapse or prior resection of the left upper lobe . with left lung volume loss . A rim-calcified structure projecting over the left lung apex is most likely an artery . The right lung is hyperinflated due to emphysema . No definite consolidation is seen to suggest pneumonia . No significant pleural effusion or pneumothorax is detected . The cardiac silhouette is distorted by the left hemidiaphragmatic elevation . The thoracic aorta is calcified .
    OUTPUT:
    
1 . No definite focal consolidation concerning for pneumonia . 2 . Left upper lobe collapse or prior lobectomy . 3 . Emphysema .