Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: No significant interval change . Right central catheter tip projects over the expected region of the SVC - RA junction , unchanged . The lungs are well - expanded and clear . No focal consolidation , edema , effusion , or pneumothorax . Cardiomediastinal silhouette is normal . Hila are unremarkable . No acute osseous abnormality .
    OUTPUT:
    
No significant interval change . No pneumonia .