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  • Title: Role of cystic fluid in diagnosis of the pancreatic cystadenoma and cystadenocarcinoma.
    Author: Wu H, Yan LN, Cheng NS, Zhang YG, Ker CG.
    Journal: Hepatogastroenterology; 2007; 54(79):1915-8. PubMed ID: 18251127.
    Abstract:
    BACKGROUND/AIMS: Early and accurate diagnosis of cystic neoplasm of the pancreas is difficult especially for the differentiation of benign or malignancy. In this study, we try to compare EUS-guided fine needle aspiration biopsy combined with measurement of the cyst fluid and serum levels of CEA, and CA19-9 for the preoperative diagnosis of pancreatic cystadenoma or cystadenocarcinoma. METHODOLOGY: Retrospective analysis was made on the clinical data of 37 patients with pancreatic cystadenoma and 48 patients with cystadenocarcinoma from 1998 to 2005. RESULTS: Carcinoembryonic antigen (CEA), and CA19-9 of the cyst fluid and serum combined with EUS-guided fine needle aspiration biopsy was made. Examination of serum CEA, and CA19-9 resulted in 21.0+/-18.0, 2.7+/-1.7 U/L and 18.7+/-17.5, 269.0+/-182.0 U/L for cystadenoma and cystadenocarcinoma respectively (P<0.05). The sensitivity of cyst fluid combined with biopsy was higher than that of a single marker. However, the sensitivity and specificity of tumor markers of cystic fluid were much higher than that of the serum (P<0.05). CONCLUSIONS: EUS-guided fine needle aspiration biopsy combined with examination of cyst fluid level of CEA and CA19-9 will be a credible means for early diagnosis of pancreatic cystadenoma and cystadenocarcinoma.
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