Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is post CABG . The heart size is normal . The aorta is moderately tortuous , unchanged in configuration since the prior chest radiograph . Again seen is a density projecting along the right upper mediastinum , unchanged since the ___ examination , corresponding to prominent vasculature as confirmed on the chest CT examination from ___ . The hilar and mediastinal contours are otherwise normal . There is no pneumothorax , focal consolidation , or pleural effusion . Mild degenerate changes of the thoracic spine are stable .
    OUTPUT:
    
No acute intrathoracic process .