Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Retrocardiac airspace consolidation containing air bronchograms is concerning for left lower lobe pneumonia . The right lung is clear . No pleural effusion or pneumothorax . Cardiomediastinal silhouette appears normal . No acute osseous abnormalities . No free air below the right hemidiaphragm is seen .
    OUTPUT:
    
Left lower lobe pneumonia .