Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs were obtained . The cardiac silhouette is mildly enlarged . The aorta remains tortuous . There is prominence as well as haziness of bilateral pulmonary vasculature consistent with mild interstitial pulmonary edema . A focal opacity is noted posteriorly within the lower lobes , likely in the right lower lobe , concerning for pneumonia . Linear atelectasis in the right mid lung field is noted . Small right pleural effusion is seen . No pneumothorax . Osseous structures are grossly unremarkable .
    OUTPUT:
    
Focal opacity in the lower lobe , likely in the right lower lobe , concerning for pneumonia , with small effusion . Mild pulmonary edema .