PMID- 21464564 OWN - NLM STAT- MEDLINE DCOM- 20120118 LR - 20140730 IS - 1423-0194 (Electronic) IS - 0028-3835 (Linking) VI - 94 IP - 1 DP - 2011 TI - Presentation and outcome of pancreaticoduodenal endocrine tumors in multiple endocrine neoplasia type 1 syndrome. PG - 58-65 LID - 10.1159/000326164 [doi] AB - AIM: To assess presentation and outcome of pancreaticoduodenal endocrine tumors (PDETs) in a single center series of multiple endocrine neoplasia type 1 (MEN1) patients. METHODS: Retrospective analysis of prospectively collected data of MEN1 patients observed at the University of Verona. RESULTS: Thirty-one MEN1 patients had PDETs, including 16 nonfunctioning (NF), 6 insulinomas and 9 Zollinger-Ellison syndrome (ZES). In 16 of these patients (52%), PDET was the manifestation which led to the diagnosis of MEN1; among this group, 15 patients (94%) previously had unidentified primary hyperparathyroidism (PHPT), which was asymptomatic in 9 cases (60%). Of the 31 patients, 19 (61%) underwent curativesurgery and 13 (68%, 7 NF-PDETs, 4 insulinomas and 2 ZES) were disease-free after a median follow-up of 3 years (range: 0.5-15). One patient had debulking surgery with stable disease after 2 years of follow-up. Eight patients with NF-PDETs