Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Comparison is made to prior study from ___ . Cardiac silhouette and mediastinum are within normal limits . Lungs are clear . There is no focal consolidation or pleural effusions . No pneumothoraces are seen . There is calcification in the anterior longitudinal ligament of the thoracic spine consistent with DISH .
    OUTPUT:
    
No signs for acute cardiopulmonary process .