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Cyst fluid analysis obtained by EUS-guided FNA in the evaluation of discrete cystic neoplasms of the pancreas: a prospective single-center experience.
Gastrointest Endosc. 2006 Nov; 64(5):697-702.GE

Abstract

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+Show Affiliations

Pancreatic Biliary Center, St. Luke's Medical Center, Milwaukee, Wisconsin 53215, USA.No affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

17055859

Citation

Linder, Jeffrey D., et al. "Cyst Fluid Analysis Obtained By EUS-guided FNA in the Evaluation of Discrete Cystic Neoplasms of the Pancreas: a Prospective Single-center Experience." Gastrointestinal Endoscopy, vol. 64, no. 5, 2006, pp. 697-702.
Linder JD, Geenen JE, Catalano MF. Cyst fluid analysis obtained by EUS-guided FNA in the evaluation of discrete cystic neoplasms of the pancreas: a prospective single-center experience. Gastrointest Endosc. 2006;64(5):697-702.
Linder, J. D., Geenen, J. E., & Catalano, M. F. (2006). Cyst fluid analysis obtained by EUS-guided FNA in the evaluation of discrete cystic neoplasms of the pancreas: a prospective single-center experience. Gastrointestinal Endoscopy, 64(5), 697-702.
Linder JD, Geenen JE, Catalano MF. Cyst Fluid Analysis Obtained By EUS-guided FNA in the Evaluation of Discrete Cystic Neoplasms of the Pancreas: a Prospective Single-center Experience. Gastrointest Endosc. 2006;64(5):697-702. PubMed PMID: 17055859.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Cyst fluid analysis obtained by EUS-guided FNA in the evaluation of discrete cystic neoplasms of the pancreas: a prospective single-center experience. AU - Linder,Jeffrey D, AU - Geenen,Joseph E, AU - Catalano,Marc F, PY - 2004/10/22/received PY - 2006/01/22/accepted PY - 2006/10/24/pubmed PY - 2007/2/21/medline PY - 2006/10/24/entrez SP - 697 EP - 702 JF - Gastrointestinal endoscopy JO - Gastrointest Endosc VL - 64 IS - 5 N2 - 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. SN - 0016-5107 UR - https://www.unboundmedicine.com/medline/citation/17055859/Cyst_fluid_analysis_obtained_by_EUS_guided_FNA_in_the_evaluation_of_discrete_cystic_neoplasms_of_the_pancreas:_a_prospective_single_center_experience_ DB - PRIME DP - Unbound Medicine ER -