A 17-yr-old boy with Crohn's disease and growth retardation developed an acute abdominal crisis while receiving total parenteral nutritional support. Acute pancreatitis was confirmed surgically. After recovery, in an attempt to provide adequate calories and to elucidate the inciting agent, he was rechallenged with his original total parenteral nutritional solution which contained 500 ml/day of a 20% fat emulsion. Symptoms and signs of acute pancreatitis quickly returned. Total parenteral nutrition was continued without the fat emulsion and symptoms and signs disappeared. This case suggests that acute pancreatitis was due to intolerance of high-concentration lipid emulsion.
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