Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since the most recent prior radiograph , there has been development of a hazy opacity in the left lower lung concerning for left lower lobe pneumonia . The right lung is clear . There is no pneumothorax or pleural effusion . A right PICC line catheter is seen in the upper SVC . Cardiomediastinal silhouette is normal . Osseous structures are unremarkable .
    OUTPUT:
    
Hazy opacity at the left lung base concerning for left lower lobe pneumonia . These findings were reported to Dr . ___ by Dr . ___ ___ telephone at 11 :20 a .m .