Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is new opacity at the left base obscuring the left heart border , most consistent with a left lower lobe pneumonia . The remainder of the lungs are clear . No other consolidation is identified . There is no pleural effusion , pulmonary edema , or pneumothorax . The cardiomediastinal silhouette is unremarkable .
    OUTPUT:
    
New left lower lobe opacity , most consistent with a pneumonia . Results were discussed with Dr . ___ at 16 :00 on ___ via telephone by Dr . ___ .