Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . No prior . There is a region of consolidation in the lingula . Elsewhere , the lungs are clear . Cardiomediastinal silhouette is within normal limits . Osseous and soft tissue structures are unremarkable .
    OUTPUT:
    
Left upper lobe pneumonia . Recommend repeat after treatment to document resolution .