Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Sternotomy wires are midline and intact . Valvular prosthesis is again noted . Bibasilar opacifications , right greater than left , are worsened since ___ and may represent a combination of pleural effusion and compressive atelectasis ; however , underlying infectious process can not be completely excluded . Mild prominence of vasculature is concerning for mild pulmonary edema .
    OUTPUT:
    
Bibasilar opacification may represent a combination of pleural effusion and compressive atelectasis ; however , supervening pulmonary infection can not be completely excluded and should be considered in the correct clinical setting .