Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . Elevation of the left hemidiaphragm is chronic appearing with mild associated left lower lobe likely compressive atelectasis . No focal consolidation , edema , effusion , or pneumothorax . The cardiomediastinal silhouette is unchanged with cardiomegaly and a tortuous and ectatic thoracic aorta appreciated on prior CTA .
    OUTPUT:
    
1 . No evident pneumonia . 2 . Cardiomegaly without edema or effusion . 3 . Tortuous and ectatic thoracic aorta .