Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest are compared to previous exam from ___ . When compared to prior , there is new patchy opacity identified at the right lung base medially within the right lower lobe . Elsewhere , the lungs remain clear . Costophrenic angles are sharp . The cardiomediastinal silhouette is within normal limits . Osseous and soft tissue structures are unremarkable .
    OUTPUT:
    
Small region of consolidation in the right lower lobe compatible with pneumonia given patient 's history .