Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is again a dual - lead pacemaker / ICD device in place with leads terminating in the right atrium and ventricle , respectively . The lung volumes are low . The stomach is mildly distended with air including an air - fluid level . There is patchy left basilar opacity suggesting minor atelectasis , but otherwise the lungs appear clear . The cardiac , mediastinal and hilar contours appear unchanged . Degenerative changes along the thoracic and visualized upper lumbar spines are similar .
    OUTPUT:
    
Patchy left basilar opacity is suggestive of minor atelectasis . Mild gastric distention . Moderate similar degenerative changes , but substantial along the thoracolumbar spine .