A 2-year-old child with intestinal malrotation had simultaneous gastric volvulus, midgut volvulus, acute pancreatitis, and gastric perforation, followed postoperatively by a temporary period of both lactosuria and sucrosuria. The gastric volvulus and midgut volvulus resulted in both proximal and distal obstruction of the duodenum, reproducing clinically a previously reported experimental model designed to produce pancreatitis. Operative reduction of the midgut volvulus and the gastric volvulus and repair of the gastric perforation was accomplished. The child has had normal growth and development during the ensuing nine years.