Autoimmune pancreatitis with atypical imaging fi ndings that mimicked an endocrine tumor

Autoimmune pancreatitis(AIP) is a rare cause of recurrent acute pancreatitis or chronic pancreatitis in middleaged patients,and is characterised by a marked infiltration of lymphocytes and plasma cells in pancreatic tissue.Diagnosis of focal forms can be diff icult as AIP may mimic pancreatic adenocarcinoma.Pediatric cases of AIP are exceptional.We report the case of a 15-yearold girl who had a focal AIP and associated cholangitis,with a very unusual vascularized mass that mimicked a pancreatic endocrine tu...