Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Slightly lower lung volumes seen on the current exam . There is no focal consolidation or effusion . Opacity at the left lung base on prior film was likely due to atelectasis given interval clearance . Cardiomediastinal silhouette is stable . Hiatal hernia is again noted . Rounded calcific density projecting over the right hilum is unchanged from ___ is likely a calcified node . No acute osseous abnormalities identified . Compression deformity in the lower thoracic spine is unchanged since ___ .
    OUTPUT:
    
No acute cardiopulmonary process . Opacity on prior film was likely due to atelectasis given interval clearance .