Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size remains mildly enlarged . Mediastinal contour is similar with post radiation fibrotic changes noted involving the medial aspects of both upper lobes with associated bronchiectasis . Hilar contours are unchanged . No pulmonary edema is present . Remainder of the lungs are clear without focal consolidation , pleural effusion or pneumothorax . No acute osseous abnormality is detected .
    OUTPUT:
    
No acute cardiopulmonary abnormality . Chronic post radiation fibrosis involving the medial aspects of both upper lobes .