Background : Bile examination is believed to be the most precise method for detecting C.lonorchis , ensis (CS) eggs. We carried out bile examination to evaluate infestation state of CS in patients with pancreatobiliary diseases in Ulsan, known as an endemic area of CS infestation.
Methods = ´ Ve examined CS eggs in bile in three hundreds and nine patients with pancreatobiliary diseases. The bile was obtained from endoscopic nasobiliary or percutaneous transhepatic biliary drainage tubes.
Results = The overall egg positive rate was 27.5% (35.3% in male, 17.6% in female). The egg positive rate was not significantly different according to the age group: 20.0% in thirties, 26.7% in forties, 24.2% in fifties, 29.9% in sixties, 36.2% in seventies and 16.7% in eighties or more. The egg positive rate according to the disease, except CS cholangitis, was not also statistically different: 32.6% in bile duct cancer, 313.5% in gallbladder cancer, 11.1" in ampulla of Vater cancer, 24.090 in pancreatic cancer, 26.06 in gallstone diseases and 17.5% in the reminder. The location of gallstone and whether CS related diseases or CS unrelated diseases did not affect the egg positive rates. The cgd positive rate in patients with normal racliological findings including cholangiography was 17-0%.
Conclusion : This result shows that regardless of age, sex, and sorts of dh eases, the infestation rate of CS was veJy high. On the basis of our results. it is therefore presumes Chat clonorchiasis is still endemic disease in Korea.(Korean J Med 66:521 -525, 2004)
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