Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate a mildly enlarged cardiac silhouette , unchanged compared to ___ . Diffusely increased opacity bilaterally is consistent with mild pulmonary edema . Additionally , slightly increased opacity in the right lower lung is likely atelectasis . The visualized upper abdomen is unremarkable , except for clips in the right upper quadrant suggestive of prior cholecystectomy .
    OUTPUT:
    
1 . Mild pulmonary edema . 2 . Linear opacity in the right lower lung is likely atelectasis .