Background/Aims:
@EN Choledochal cyst is a congenital dilatation of extra- or intrahepatic bile duct. Recently, anomalous union of pancreaticobiliary duct(AUPBD) is supposed to be one of the major causes of choledochal cyst. The aims of this study are to assess
the
association ratio of AUPBD in choledochal cyst and whether the AUPBD in choledochal cyst have a clinical significance.
@ES Methods:
@EN The study subjects were 35 adult patients who were diagnosed by ERCP in Asan Medical Center from August, 1990 to July, 1995. We have classified the type of choledochal cyst and AUPBD according to Todani and Kimura, respectively.
@ES Result:
@EN The number of choledochal cyst was 14 cases(40%) in type I, 1 case(3%) in type II, 6 cases(17%) in type III, 11 cases(31%) in type IVA. Three cases were unclassified. Among the 35 cases, 22 cases(63%) of choledochal cyst were associated with
AUPBD.
AUPBD was only seen in type I, IVA and unclassified form of choledochal cyst. The number of patients with type 1 AUPBD was 10(45%) and type 2 was 12(55%) by Kimura's classification. The mean age was younger in patients with choledochal cyst and
AUPBD(36.2 16 years) than in choledochal cyst alone(49.3 19 years). Acute inflammation and malignancy of biliary tree & pancreas were more commonly seen in patients with choledochal cyst and AUPBD than choledochal cyst alone.
@ES Conclusion:
@EN In patients with choledochal cyst, the association of AUPBD was not uncommon and they had more grave clinical course. AUPBD may be a contributing factor to develop malignancy in patients with choledochal cyst. (Kor J Gastrointest Endosc
16:41~48,
1996)
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