Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is retrocardiac opacity that likely reflects patient 's known hiatal hernia . However , there is an asymmetric right infrahilar opacity when compared to the prior exam . This likely reflects infection versus aspiration . There are bilateral interstital opacites present as well . No pleural effusions or pneumothoraces are seen . The heart is slightly enlarged . Mitral annular calcifications noted . Aortic arch calcifications are noted . There is no evidence of pneumoperitoneum . Partial visualization of plate and screw fixation of the left humerus is seen fixating the surgical neck fracture of the humerus .
    OUTPUT:
    
1 . Interval increase in right infrahilar opacity concerning for infection versus aspiration . Follow up radiography may be helpful to confirm this ; however , this appearance may be part of a more generalized pattern of pulmonary edema without an additional process . 2 . Findingsl consistent with mild to moderate pulmonary edema .