Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is mild left basal atelectasis . Otherwise , the lungs are clear with no evidence of consolidation , effusion , or pneumothorax . Cardiomediastinal silhouette appears normal . The aorta appears tortuous but stable . Mild atherosclerotic calcifications are noted at the aortic arch . Kyphoscoliosis of the thoracic spine is again noted .
    OUTPUT:
    
No acute cardiopulmonary process .