A case of 6 years old developing acute pancreatitis in assocation with double gallbladder is reported. The patient developed a pancreatic pseudocyst after primary drainage operation for pancreatitis, to which a pseudpcystogastrostomy was performed. In revewing reports in Japanese journals of pediatric patients with acute pancreatitis and pancreatic pseudocysts, 135 for the former and 75 for the latter including 75 cases of adults, an association of double gallbladder was noted. Among the etiological factors of pancreatitis, anomaly in the biliary tract including con-genital dilatation of the bile duct is considered to be most likely cause. In the adult cases of pancreatic pseudocysts, two thirds are due to pancreatitis, whereas in the chilldren, two thirds are due to traumatic injury. Since four out five patients with pancreatic pseudocyst in the Japanese series were associ-ate with double gallbladder, we presume that the double gallbladder has some possible re-levance to the development of acute pancreatitis.
