Pancreatitis has been described occasionally in association with Crohn's disease in adults before, but it is uncommon in children. It may be caused by multiple etiologies, and there exist a few reports of pancreatitis in pediatric patients with inflammatory bowel disease because of biliary obstruction or drug induced. We report a rare case of a 14-year-old girl with Crohn's disease and hypoparathyreoidism who suffered from hemorrhagic necrotizing pancreatitis with development of huge psyeudocysts, a life-threatening complication that required surgical treatment.