• Gastrointest. Endosc. · Jan 2015

    EUS is superior for detection of pancreatic lesions compared with standard imaging in patients with multiple endocrine neoplasia type 1.

    • Sophie J van Asselt, Adrienne H Brouwers, Hendrik M van Dullemen, Eric J van der Jagt, Alfons H H Bongaerts, Ido P Kema, Klaas P Koopmans, Gerlof D Valk, Henri J Timmers, Wouter W de Herder, Richard A Feelders, Paul Fockens, Wim J Sluiter, Elisabeth G E de Vries, and Thera P Links.
    • Department of Endocrinology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands; Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
    • Gastrointest. Endosc. 2015 Jan 1; 81 (1): 159-167.e2.

    BackgroundIn multiple endocrine neoplasia type 1 (MEN1), pancreatic neuroendocrine tumors (pNETs) are the leading MEN1-related cause of death.ObjectiveTo evaluate EUS and (11)C-5-hydroxytryptophan positron emission tomography ((11)C-5-HTP PET), compared with the recommended screening techniques in MEN1 patients for early detection of pNETs.DesignCross-sectional study.SettingTertiary-care university medical center.PatientsThis study involved 41 patients with a proven MEN1 mutation or with one MEN1 manifestation and a mutation carrier as a first-degree family member, with recent screening by abdominal CT or magnetic resonance imaging (MRI) and somatostatin receptor scintigraphy (SRS).InterventionsEUS by using a linear Pentax echoendoscope and Hitachi EUB-525 and (11)C-5-HTP PET.Main Outcome MeasurementsPatient-based and lesion-based positivity for pNET was calculated for all imaging techniques. The McNemar test was used to compare the yield of the 4 imaging techniques.ResultsIn 35 of 41 patients, 107 pancreatic lesions were detected in total. EUS detected 101 pancreatic lesions in 34 patients, (11)C-5-HTP PET detected 35 lesions in 19 patients, and CT/MRI + SRS detected 32 lesions in 18 patients (P < .001). (11)C-5-HTP PET performed similarly to CT/MRI + SRS and better compared with SRS only (13 lesions in 12 patients), both at a patient-based and lesion-based level (P < .05).LimitationsSingle-center study.ConclusionEUS is superior to CT/MRI + SRS for pancreatic lesion detection in patients with MEN1. In this setting, (11)C-5-HTP PET is not useful. We recommend EUS as the first-choice pancreas imaging technique in patients with MEN1. (Clinical Trial Registration NumberNTR1668.).Copyright © 2015 American Society for Gastrointestinal Endoscopy. Published by Elsevier Inc. All rights reserved.

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