Autoimmune pancreatitis (AIP) is difficult to diagnose. Often, it doesn't cause any symptoms. Symptoms and signs of type 1 AIP are similar to those of pancreatic cancer. AIP Pancreatic cancer signs and symptoms can include: 
Dark urine
Pale stools or stools that float in the toilet
Yellow skin and eyes (jaundice)
Pain in your upper abdomen or middle part of your back
Nausea and vomiting
Weakness or extreme tiredness
Loss of appetite or feelings of fullness
Weight loss for no known reason
 The most common sign of type 1 AIP, present in about 80% of people, is painless jaundice, caused by blocked bile ducts. Type 2 AIP can present with recurrent episodes of acute pancreatitis. Pain in the upper abdomen, a common symptom of pancreatic cancer, is frequently absent in autoimmune pancreatitis. AIP AIP Differences between type 1 and type 2 AIP are: AIP 
In type 1 AIP, the disease may affect other organs in addition to the pancreas. Type 2 AIP affects only the pancreas, although the disease is associated with another autoimmune condition, inflammatory bowel disease.
Type 1 AIP predominantly affects men in the sixth to seventh decade of life.
Type 2 AIP affects both men and women equally and has a younger age of onset compared with type 1 AIP.
Type 1 AIP is more likely to relapse after treatment is discontinued.
