Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right PICC line is unchanged in position . Again seen is opacification at the left lung base as well as the left perihilar and lower lung zones concerning for pneumonia . The right lung is clear . There is no pneumothorax or pleural effusion . Cardiomediastinal silhouette is normal . Visualized osseous structures are clear .
    OUTPUT:
    
Opacification at the at the left perihilar region and left lower long zones concerning for pneumonia .