Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In the interim since most recent prior examination , there is opacification in the right lower lobe which appears concerning for pneumonia . The left lung is clear . No pleural effusion or pneumothorax is noted . Surgical clips are noted in the right upper abdomen , better delineated on the prior CT abdomen dating back to ___ .
    OUTPUT:
    
Opacification at the right lower lobe is concerning for pneumonia . Follow up in 4 weeks is recommend to determine resolution and to exclude underlying malignancy . Dr . ___ was notified of results at 16 :34 on ___ via telephone .