Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were provided . There is vague opacity in the left perihilar region , which is concerning for pneumonia . In addition , there is subtle increased opacity in the right lower lobe , which also may represent a focus of pneumonia . No large effusion or pneumothorax . Cardiomediastinal silhouette is stable . A screw is partially imaged in the right humeral head .
    OUTPUT:
    
Left perihilar and right lower lobe opacities concerning for pneumonia .