Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomediastinal contours are unchanged . There is increased prominence of the bilateral hila with extensive reticulonodular opacifications with a slightly central predominance . There is stable blunting of the right costophrenic angle likely due to a trace pleural effusion . No pneumothorax evident . Sternotomy sutures are midline and intact . Evidence of prior mitral valve repair .
    OUTPUT:
    
Diffuse reticulonodular opacifications with slightly central predominance likely represent interstitial edema ; however , atypical infection is a consideration . Please correlate with lab values .