Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to chest radiograph from ___ , there is no significant interval change . Low lung volumes are seen bilaterally with bibasilar linear atelectasis . The lungs are otherwise clear . The pleural surfaces are normal without evidence of pleural effusion or pneumothorax . Heart is partially obscured by the left diaphragmatic surface ; however , is mildly enlarged and unchanged from prior study . Mediastinal contour and hila are unremarkable . Visualized osseous structures are unremarkable . Limited assessment of the upper abdomen demonstrates clips in the left upper quadrant . No intraperitoneal free air .
    OUTPUT:
    
No acute cardiopulmonary process . Low lung volumes and bibasilar atelectasis .