Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperinflated . On the lateral view , there is patchy opacity at the posterior , inferior chest , worrisome for pneumonia . No large pleural effusion is seen . There is no evidence of pneumothorax . The cardiac and mediastinal silhouettes are unremarkable . There may be a hiatal hernia .
    OUTPUT:
    
Patchy opacity at the posterior inferior chest , best seen on the lateral view , worrisome for pneumonia .