Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are opacities at the right lung base as well the left perihilar region concerning for infectious process or infarcts given history of sickle cell disease . The cardiac silhouette is mildly enlarged . There is no pleural effusion or pneumothorax . Osseous structures are grossly intact . A left chest Port - A - Cath terminates at the caval atrial junction .
    OUTPUT:
    
Opacities at the right lung base and left perihilar region concerning for pneumonia versus infarcts .