Updated International Guidelines for IPF Diagnosis: A Radiology Perspective



This patients’ serologies are a bit more intriguing than the first case. He has an ANA of 320, which is borderline positive, the ESR is elevated, which would indicate that further serologies should be checked, and the rheumatoid factor is 200. If you were to check the aCCP, one would be greatly concerned that it would be positive, which would be strongly suggestive of rheumatoid arthritis.