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A 61-year-old male asked:

Medical oncology: is having an lgg4 blood test ever of any value in monitoring pancreatic cancer?

1 doctor answer3 doctors weighed in
Dr. Matthew Fero
Medical Oncology 32 years experience
Pancreatitis...: or an inflamed pancreas, can occur on rare occasions related to increased IgG4 antibody. This is called autoimmune pancreatitis (AIP). High IgG4 levels in the blood may help to distinguish AIP from pancreatic cancer (PCa). However, a few cases of high IgG4 were reported in patients with PCa, so it is not a perfect indicator. It is not used to monitor PCa, but high levels may drop if AIP resolves.
Last updated Nov 9, 2015

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