Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A portable frontal chest radiograph demonstrates unchanged moderate to severe cardiomegaly and moderate pulmonary edema . Right upper lobe opacity is more apparent than on most recent chest radiograph , concerning for pneumonia . The remainder of the exam is unchanged .
    OUTPUT:
    
1 . Right upper lobe opacity more apparent than on prior chest radiograph , concerning for pneumonia . 2 . Unchanged severe cardiomegaly and moderate pulmonary edema .