Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is increased opacity in the right lung base corresponding to density over the spine on the lateral view compatible with right lower lobe pneumonia . A small right pleural effusion is noted on the lateral view . There is no left pleural effusion or pneumothorax . There is potential mild pulmonary edema . The cardiac silhouette is moderately enlarged but stable . Prominence of the main pulmonary artery is unchanged , suggesting underlying pulmonary hypertension .
    OUTPUT:
    
1 . Increased opacity in the right lung base concerning for right lower lobe pneumonia . 2 . Small right pleural effusion and potential mild pulmonary edema . 3 . Stable cardiomegaly and prominence of the main pulmonary artery .