Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to prior examination dated ___ , there has been no relevant interval change . Lung volumes remain low leading to crowding of the bronchovascular structures . There is no lobar consolidation , pleural effusion , pneumothorax , or pulmonary edema . Linear atelectasis is noted at the left lung base . Calcifications are seen at the aortic arch . The cardiomediastinal silhouette is unchanged in appearance . Anterior cervical fusion hardware is incompletely imaged .
    OUTPUT:
    
Low lung volumes without acute cardiopulmonary process .