Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest are compared to previous exam from ___ . There is increased opacity over the spine and lateral view and obscuration of the descending thoracic aorta on the frontal view , compatible with a left lower lobe infiltrate . Elsewhere , the lungs remain clear . Cardiomediastinal silhouette is within normal limits . Osseous and soft tissue structures are unremarkable .
    OUTPUT:
    
Left lower lobe consolidation compatible with pneumonia in the appropriate clinical setting . Repeat after treatment is recommended to document resolution .