Significances of serum level and immunohistochemical stain of CA19-9 in simple hepatic cysts and intrahepatic biliary cystic neoplasms
- Park K.H.; Kim J.S.; Lee J.H.; Kim H.J.; Kim J.Y.; Yeon J.E.; Park J.J.; Byun K.S.; Bak Y.T.; Lee C.H.
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- Intrahepatic biliary cystic neoplasm; CA19-9; Cystadenoma; Biliary; Cystadenocarcinoma; Hepatic cyst; Simple
- The Korean journal of gastroenterology = Taehan Sohwagi Hakhoe chi, v.47, no.1, pp.52 - 58
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- The Korean journal of gastroenterology = Taehan Sohwagi Hakhoe chi
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- BACKGROUND/AIMS: In spite of various diagnostic modalities, biliary cystic neoplasms (biliary cystadenoma and cystadenocarcinoma) remain to be difficult to diagnose preoperatively. Recently, there are some reports that elevated CA19-9 level in serum and/or cystic fluid could be a useful finding in the differential diagnosis of biliary cystic neoplasm. This study aimed to evaluate the expression of CA19-9 and to elucidate its significances in intrahepatic biliary cystic neoplasms and simple hepatic cysts. METHODS: In 8 patients with biliary cystic neoplasms and 6 simple hepatic cysts, symptoms, radiologic and laboratory findings were reviewed retrospectively. In 5 biliary cystic neoplasms (4 biliary cystadenomas, 1 biliary cystadenocarcinoma) and 5 simple hepatic cysts, immunohistochemical stainings for CA19-9 were performed with formalin-fixed, paraffin-embedded tissues. RESULTS: In 8 biliary cystic neoplasms, two cases were suspected as biliary cystadenoma preoperatively and 6 cases could not be distinguished from simple cysts or cholangiocarcinoma preoperatively. In 6 simple hepatic cysts, 3 cases were diagnosed preoperatively and 3 cases could not be distinguished from biliary cystadenoma or pancreatic pseudocyst preoperatively. Expression of CA19-9 in simple hepatic cysts and biliary cystic neoplasms were 80% in both groups. Expression of CA19-9 is not related to the elevated level of CA19-9 in serum. CONCLUSIONS: Our data suggests that the elevated level of CA19-9 in serum may not be helpful in the preoprative diagnosis of biliary cystic neoplasm.
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- 2. Clinical Science > Department of Gastroenterology and Hepatology > 1. Journal Articles
- 2. Clinical Science > Department of Pathology > 1. Journal Articles
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