Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are low in volume , but clear . The cardiomediastinal silhouette and hilar contours are normal . Nodular bilateral hilar opacities correspond to pulmonary vessels on chest CTA from ___ . No pleural effusion or pneumothorax is present . Fractured sternal wires are longstanding and there has been no further derangement of the wires since at least ___ . Elevation of the right hemidiaphragm is unchanged and may date from extensive trauma to the right chest responsible for healed rib fractures and extensive pleural thickening . Surgical anchors are noted overlying the left humerus .
    OUTPUT:
    
No acute intrathoracic process . Stable changes of remote chest trauma and disrupted sternal wires .