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Autoimmune Pancreatitis Mimics Cancer, but Is Much More Treatable

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Rapid weight loss with jaundice may signal autoimmune pancreatitis. This inflammatory condition looks like pancreatic cancer in terms of symptoms, lab tests, and imaging studies, and is difficult to diagnose. According to a review from the Cleveland Clinic, 11 percent of patients who undergo surgery for cancer of the pancreas are found to have autoimmune pancreatitis. Researchers in the United States, Japan, and Korea are working to establish improved diagnostic criteria to avoid unnecessary surgery and to allow physicians to start immunosuppressive drug therapy promptly.

Most autoimmune diseases affect more women than men. This one is the opposite: twice as many men as women are affected. The reason for this is unknown. Most patients are at least 50 years old. The autoimmune process was first proposed to be a factor in chronic pancreatitis in 1961. It took three decades for autoimmune pancreatitis to be codified as a separate disease.

Pancreatitis in general can be acute or chronic. Besides weight loss and jaundice, symptoms may include:
1. Abdominal pain
2. Chills
3. Clammy skin
4. Fatty stools
5. Fever
6. Nausea and vomiting
7. Sweating
8. Weakness

Chronic pancreatitis is often caused by alcohol abuse, but the autoimmune form is seen in patients with no history of alcohol use. The normal pancreas produces the hormones insulin and glucagon, as well as enzymes important for digesting fat. Diabetes is the most common disease of the pancreas.

The inflamed pancreas may block the bile duct, so that bilirubin produced by the liver is not able to reach the intestines normally. The skin and whites of the eyes turn yellow, or brown in severe cases. This condition is called obstructive jaundice, and can be corrected with surgery.

The good news about autoimmune pancreatitis is that it responds dramatically to corticosteroid treatment in most cases. In fact, Reference 1 suggests a trial of one to two months of steroid treatment for cases that are difficult to diagnose. If the symptoms do not improve, then the diagnosis should be re-evaluated.

Some cases clear up spontaneously without treatment and remain in remission.

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We value and respect our HERWriters' experiences, but everyone is different. Many of our writers are speaking from personal experience, and what's worked for them may not work for you. Their articles are not a substitute for medical advice, although we hope you can gain knowledge from their insight.


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