Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The lungs are well expanded and clear without focal consolidation , pleural effusion or pneumothorax . Scarring in the right upper lung is similar to CT ___ . Linear medial right upper lobe opacity is likely sequelae of prior radiation . Heart size is normal . Mediastinal silhouette and hilar contours are stable . Haziness at the right heart border is mediastinal fat , seen on CT . Surgical clips are seen in the left upper quadrant . No displaced rib fracture is seen . Thoracic vertebral body heights are maintained .
    OUTPUT:
    
No evidence of acute intrathoracic injury .