Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest demonstrate a area of focal opacification in the superior segment of the left lower lobe , concerning for pneumonia , as well as possibly within the left lung base . There is no overt pulmonary edema . The cardiomediastinal silhouette is stable . Aortic arch calcifications are present . Anterior cervical fusion hardware is again seen .
    OUTPUT:
    
Opacification in the superior segment of the left lower lobe and left lung base , concerning for pneumonia .