Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild cardiomegaly and vascular engorgement are present . Patchy opacity in the right lower lobe may represent underlying infection or mass . No evidence of pleural effusions or pneumothorax .
    OUTPUT:
    
1 . Mild cardiomegaly and vascular engorgement . 2 . Patchy opacity in the right lower lobe , for which comparison with prior studies , if they can be obtained , is recommended . This may represent underlying infection or mass .