Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs is relatively unchanged examination compared to ___ with multiple bilateral pulmonary opacifications , areas of retraction and volume loss consistent with fibrosis . Patient is status post sternotomy with sutures midline and intact . Cardiomediastinal silhouette is unchanged .
    OUTPUT:
    
Stable fibrosis related to known sarcoid . No new opacification to suggest pneumonia .