Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The left atrium is mildly enlarged . Calcifications are seen in the arotic valve . The mediastinal contours are within normal limits . The right hilum demonstrates increased radiodensity and appears slightly larger from prior examination . There is no focal consolidation , pleural effusion or pneumothorax . Unidentified foreign body in the heart , posterior to midline , is likely in the esophagus .
    OUTPUT:
    
Right hilum slightly larger , could be nodal mass . Further evaluation with CT is recommended .