6 months back in Sept'14 my father was admitted in an emergency after he complained of acute pain in the abdomen and back coupled with vomiting. He was diagnosed with acute necrotizing pancreatitis. The doctor placed a stent via ERCP procedure in the CBD which was removed after he was discharged from the hospital once all his vitals were normal, including TLC, amylase, lipase,etc. My father is a non alcoholic, doesn't have diabetes or blood pressure issue. He had gall stones which was removed in June'13. Ever since the stent removal procedure my father has persistent fever and there are durations of a week or so when it touches 103, 104. He is also taking homeopathy which helps in keeping the fever under control. In a recent CT scan he was told that a pseudocyst has been formed and it needs to be removed. I want to ask why my father has fever all the time and if the pseudocyst has to be removed what is the best way of doing that, a surgery or via endoscopy? What are the risks involved in both procedures and will he ever recover completely. Thank you!