Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A left mid lung opacity is once again reflective of known radiation fibrosis . Right hemithorax volume is unchanged . The right lower lung opacification reflects a known right lower lung lesion better evaluated on prior PET - CT . There is biapical thickening which is stable . The cardiomediastinal hilar contours are stable . The osseous structures are diffusely sclerotic consistent with a known history of osteoblastic metastasis best seen on prior imaging .
    OUTPUT:
    
No new focal consolidations . No acute cardiopulmonary process .