Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is enlarged but stable in size from the prior exam on ___ . The mediastinal and hilar contours are stable . There is mild pulmonary vascular congestion without frank edema . The lungs are clear without focal consolidation , pleural effusion or pneumothorax . Prominence of the upper mediastinum is consistent with mediastinal lipomatosis , as before . Spinal stimulator is unchanged in position .
    OUTPUT:
    
No acute cardiothoracic process .