Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is vague midlung opacity on the left which projects anteriorly on the lateral view within the lingula . The lungs are hyperinflated but otherwise clear . The cardiomediastinal silhouette is within normal limits . Thoracic dextroscoliosis is noted .
    OUTPUT:
    
Focal opacity in the lingula which could be compatible with pneumonia in the proper clinical setting . Recommend repeat after treatment to document resolution ( if treatment indicated ) otherwise , CT scan can be considered .