Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to prior , there has been interval development of medial biapical airspace opacities . There is new mild pulmonary vascular congestion . No pleural effusion or pneumothorax is detected on this view . Heart and mediastinal contours are within normal limits given AP technique .
    OUTPUT:
    
New medial biapical airspace opacities and mild vascular congestion , possibly secondary to aspiration ; but underlying infection can not be excluded . Discussed with ___ by ___ by phone at 12 :28 p .m . on ___ .