Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette is prominent , but not frankly enlarged and use overall similar to the prior study . Again seen is slight unfolding of the aorta , unchanged compared with ___ . A prominent focus of platelike atelectasis is seen over the right lung base , also similar to the prior study . Possible minimal atelectasis at the left lung base . No frank consolidation is identified . No CHF . The lateral view suggests a normal variant pectus carinatum configuration , unchanged .
    OUTPUT:
    
Platelike atelectasis at the right lung base . No focal consolidation or evidence of pulmonary edema is identified .