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Preoperative Diagnosis of Lymph Node Metastasis in Biliary and Pancreatic Carcinomas: Evaluation of the Combination of Multi-detector CT and Serum CA19-9 Level.


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Title: Preoperative Diagnosis of Lymph Node Metastasis in Biliary and Pancreatic Carcinomas: Evaluation of the Combination of Multi-detector CT and Serum CA19-9 Level.
Authors: Nanashima, Atsushi / Sakamoto, Ichiro / Hayashi, Tomayoshi / Tobinaga, Syuuichi / Araki, Masato / Kunizaki, Masaki / Nonaka, Takashi / Takeshita, Hiroaki / Hidaka, Shigekazu / Sawai, Terumitsu / Yasutake, Toru / Nagayasu, Takeshi
Issue Date: Dec-2010
Publisher: Springer Netherlands
Citation: Digestive diseases and sciences, 55(12), pp.3617-3626; 2010
Abstract: BACKGROUND: It is difficult to diagnose lymph node metastasis in biliary and pancreas carcinomas before surgery. AIM: The aim of this study was to assess the utility of the combination of multi-detector computed tomographic (MDCT) findings and serum carbohydrate antigen (CA)19-9 level in the diagnosis of lymph node metastasis in biliary and pancreas carcinomas. METHODS: The subjects were 139 patients with biliary and pancreas carcinomas who underwent surgical resection. We calculated the positive predictive values (PPV), sensitivities, specificities, positive likelihood ratios (PLR) and accuracies of diagnosis by MDCT alone, serum CA19-9 level alone, and their combination. RESULTS: The PPV and sensitivity were higher for node metastasis in hepatoduodenal ligament than in common hepatic artery (CHA) or para-aortic region (PAR). Specificity, accuracy and PLR were highest for CHA in biliary carcinoma. With pancreatic carcinoma, PLR was slightly higher in PAR compared to other regions. The sensitivity of CA19-9 for node metastasis was higher than that of MDCT, while the PPV, specificity, accuracy and PLR were low for both biliary and pancreas carcinoma. The combination of positive CT findings and high CA19-9 level had the highest positive rate for node metastasis for both types of carcinomas. Nodes around the supra-mesenteric vein could not be fully observed on CT. CONCLUSION: The combination of high-resolution MDCT and CA19-9 is useful for the diagnosis of lymph node metastasis in biliary and pancreas carcinomas.
Description: The original publication is available at www.springerlink.com
Keywords: Bile duct carcinoma / CA19-9 / Computed tomography / Node metastasis / Pancreas carcinoma
URI: http://hdl.handle.net/10069/23128
ISSN: 01632116
DOI: 10.1007/s10620-010-1180-y
PubMed ID: 20238244
Rights: © Springer Science+Business Media, LLC 2010
Type: Journal Article
Text Version: author
Appears in Collections:Articles in academic journal

Citable URI : http://hdl.handle.net/10069/23128

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