Document Detail


Cyst fluid analysis obtained by EUS-guided FNA in the evaluation of discrete cystic neoplasms of the pancreas: a prospective single-center experience.
MedLine Citation:
PMID:  17055859     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: Accurate assessment of pancreatic cystic neoplasms is imperative before selecting available treatment options, such as surgical resection, drainage, or conservative therapy. Available modalities, CT and magnetic resonance imaging, have been inconsistent in diagnosis. Reports involving EUS and cyst fluid analysis have been encouraging, including studies of EUS features and/or cyst fluid analysis, which may differentiate pancreatic cystic neoplasms. OBJECTIVE: To retrospectively determine cyst fluid characteristics that differentiate cystic neoplasms. DESIGN: Patient evaluation included (1) EUS features (reported elsewhere) and (2) cyst fluid analysis (carcinoembryonic antigen [CEA], carbohydrate antigen 19-9 [CA 19-9], amylase and lipase, viscosity [VIS], mucin stain, and cytology). Exclusion criteria included the following: intraductal papillary mucinous tumor lesions, bloody cyst aspirate, neuroendocrine tumors, and patients without surgical histopathology. SETTING: Pancreatic Biliary Center, St Luke's Medical Center, Milwaukee, Wisconsin. PATIENTS: A total of 102 patients (60 women, 42 men; age, 23-76 years) presented for evaluation of pancreatic cystic neoplasm; 71 underwent surgical resection. RESULTS: Seventy-one of 102 patients who underwent surgery presented the following histopathologic correlates: 23 pseudocysts (PC), 13 serous cystadenoma (SCyA), 21 mucinous cystadenoma (MCyA), and 14 mucinous cystadenocarcinoma (MCyA-CA). Cyst fluid analysis of these patients showed the following: VIS was lower in PC (mean, 1.3) and SCyA (1.27) when compared with MCyA (1.84) and MCyA-CA (1.9). All mucinous neoplasms had VIS >1.6, whereas only 2 mucinous cystic neoplasms (MCN) had VIS = 1.6 (both PC). The CEA level was significantly higher in MCyA (adenoma [878 ng/mL], carcinoma [27,581 ng/mL]) vs PC (189 ng/mL), and SCyA (121 ng/mL). Amylase levels were higher in PC (7210 U/L) compared with cystic neoplasm (SCyA, 679 U/L; MCyA, 1605 U/L; MCyA-CA, 569 U/L). CONCLUSIONS: Differential diagnosis of pancreatic cystic neoplasm is significantly enhanced by cyst fluid analysis. Elevated CEA (> or =480 ng/mL) and VIS (>1.6) accurately predict MCN from SCyA and PC. Malignant from benign MCN can be differentiated by CEA levels > or =6000 ng/mL.
Authors:
Jeffrey D Linder; Joseph E Geenen; Marc F Catalano
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Gastrointestinal endoscopy     Volume:  64     ISSN:  0016-5107     ISO Abbreviation:  Gastrointest. Endosc.     Publication Date:  2006 Nov 
Date Detail:
Created Date:  2006-10-23     Completed Date:  2007-02-20     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0010505     Medline TA:  Gastrointest Endosc     Country:  United States    
Other Details:
Languages:  eng     Pagination:  697-702     Citation Subset:  IM    
Affiliation:
Pancreatic Biliary Center, St. Luke's Medical Center, Milwaukee, Wisconsin 53215, USA.
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Amylases / analysis
Analysis of Variance
Biopsy, Fine-Needle / methods*
CA-19-9 Antigen / analysis
Carcinoembryonic Antigen / analysis
Cyst Fluid / chemistry*
Cystadenocarcinoma / chemistry
Cystadenoma, Mucinous / chemistry
Cystadenoma, Serous / chemistry
Endosonography*
Female
Humans
Lipase / analysis
Male
Middle Aged
Mucins / analysis
Pancreatic Neoplasms / chemistry*,  pathology,  ultrasonography
Pancreatic Pseudocyst / chemistry*,  pathology,  ultrasonography
Prospective Studies
Retrospective Studies
Sensitivity and Specificity
Tumor Markers, Biological / analysis*
Viscosity
Wisconsin
Chemical
Reg. No./Substance:
0/CA-19-9 Antigen; 0/Carcinoembryonic Antigen; 0/Mucins; 0/Tumor Markers, Biological; EC 3.1.1.3/Lipase; EC 3.2.1.-/Amylases
Comments/Corrections
Comment In:
Gastrointest Endosc. 2006 Nov;64(5):703-4   [PMID:  17055860 ]

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