Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a retrocardiac consolidation consistent with a left lower lobe pneumonia . The lungs are otherwise clear . There is no pneumothorax or pleural effusion . Cardiomediastinal silhouette is unremarkable .
    OUTPUT:
    
Left lower lobe pneumonia . These findings were communicated to Dr . ___ at 12 :29 p .m . on ___ by telephone .