Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Large hiatal hernia is seen with air - fluid level . Patchy linear opacities in left mid to lower lung most likely represent atelectasis rather than consolidation due to infection . No pleural effusion is seen . There is no pneumothorax . The cardiac and mediastinal silhouettes are stable .
    OUTPUT:
    
Hiatal hernia and left mid to lower lung atelectasis . Linear opacities in the left mid to lower lung more likely represent atelectasis rather than infection .