Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since the prior radiograph , there is no significant change . The lungs are clear without consolidation or edema . Linear right middle lobe atelectasis is noted . There is hyperinflation of the lungs . There is no pleural effusion or pneumothorax . The aorta is calcified and tortuous . The cardiac silhouette is normal in size . Unchanged mild rightward deviation of the trachea by a nodular and enlarged thyroid is again noted .
    OUTPUT:
    
No acute cardiopulmonary process .