Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . There is a new lingular opacity compared to ___ , which could represent atelectasis or pneumonia . No pleural effusion or pneumothorax . Heart size is normal . Mediastinal and hilar contours are normal .
    OUTPUT:
    
New lingular opacity , which could represent atelectasis or pneumonia . Recommend follow - up chest radiograph to assess for resolution . Recommendation : Follow - up chest radiograph to assess for resolution .