Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . There is minimal bibasilar atelectasis . Eventration of the left hemidiaphragm is again seen . No focal consolidation , pleural effusion , or evidence of pneumothorax is seen . The aorta remains calcified and tortuous . The cardiac silhouette is not enlarged . Cardiac and mediastinal silhouettes are stable since the prior study . Some degenerative changes are seen along the spine .
    OUTPUT:
    
Mild bibasilar atelectasis . Otherwise , no acute cardiopulmonary process .