PMID- 16454829 OWN - NLM STAT- MEDLINE DCOM- 20060316 LR - 20161124 IS - 0002-9270 (Print) IS - 0002-9270 (Linking) VI - 101 IP - 2 DP - 2006 Feb TI - Prospective endoscopic ultrasonographic evaluation of the frequency of nonfunctioning pancreaticoduodenal endocrine tumors in patients with multiple endocrine neoplasia type 1. PG - 266-73 AB - BACKGROUND: The frequency of pancreaticoduodenal endocrine tumors in patients with multiple endocrine neoplasia type 1 (MEN1) remains unknown. AIM: To evaluate prospectively with endoscopic ultrasonography (EUS) the frequency of nonfunctioning (asymptomatic) pancreaticoduodenal tumors. PATIENTS AND METHODS: MEN1 patients without functioning pancreatic involvement underwent systematic pancreaticoduodenal EUS in nine GTE (Groupe des Tumeurs Endocrines) centers. Demographic and clinical factors predictive of pancreatic involvement were sought, and standardized biochemical measurements obtained. RESULTS: Between November 1997 and July 2004, 51 patients (median age: 39 [range: 16-71] yr) were studied. MEN1 had been diagnosed 3 [0-20] yr earlier, notably by genetic screening for 26 (51%) with asymptomatic disease. Twenty-five patients had minor biochemical anomalies (<2 x normal (N)) and serum somatostatin was 10.8 N in 1; EUS detected pancreatic lesions in 28 patients (54.9%; 95% CI: 41.3-68.7%). A median of three [1-9] tumors with a median diameter of 6 [2-60] mm was found per patient; for 19 (37.3%) patients a tumor measured > or =10 mm and > or = 20 mm in 7 (13.7%) patients. Only one duodenal lesion was found and three patients had peripancreatic adenopathies. Pancreatic tumors were not associated with any of the studied parameters, notably age, family history, biochemical anomalies. Sixteen of twenty-six patients underwent EUS monitoring over 50 [12-70] months; six (37.5%) had more and/or larger pancreatic lesions. CONCLUSION: The frequency of nonfunctioning pancreatic endocrine tumors is higher (54.9%) than previously thought. The size and number of these tumors can increase over time. Pancreatic EUS should be performed once MEN1 is diagnosed to monitor disease progression. FAU - Thomas-Marques, Laurence AU - Thomas-Marques L AD - Gastroenterology, Hopital Robert Debre, CHU de Reims, France. FAU - Murat, Arnaud AU - Murat A FAU - Delemer, Brigitte AU - Delemer B FAU - Penfornis, Alfred AU - Penfornis A FAU - Cardot-Bauters, Catherine AU - Cardot-Bauters C FAU - Baudin, Eric AU - Baudin E FAU - Niccoli-Sire, Patricia AU - Niccoli-Sire P FAU - Levoir, Damien AU - Levoir D FAU - Choplin, Helene du Boullay AU - Choplin Hdu B FAU - Chabre, Olivier AU - Chabre O FAU - Jovenin, Nicolas AU - Jovenin N FAU - Cadiot, Guillaume AU - Cadiot G CN - Groupe des Tumeurs Endocrines (GTE) LA - eng PT - Comparative Study PT - Journal Article PT - Multicenter Study PL - United States TA - Am J Gastroenterol JT - The American journal of gastroenterology JID - 0421030 RN - 0 (Biomarkers, Tumor) RN - 0 (Gastrins) RN - 0 (Peptides) RN - 0 (polypeptide C) RN - 37221-79-7 (Vasoactive Intestinal Peptide) RN - 59763-91-6 (Pancreatic Polypeptide) RN - 9007-92-5 (Glucagon) SB - IM MH - Adolescent MH - Adult MH - Aged MH - Biomarkers, Tumor/blood MH - Diagnosis, Differential MH - Disease Progression MH - Duodenal Neoplasms/blood/*diagnostic imaging/epidemiology MH - *Endosonography MH - Female MH - Follow-Up Studies MH - Gastrins/blood MH - Glucagon/blood MH - Humans MH - Incidence MH - Male MH - Middle Aged MH - Multiple Endocrine Neoplasia Type 1/blood/*diagnostic imaging MH - Pancreatic Neoplasms/blood/*diagnostic imaging/epidemiology MH - Pancreatic Polypeptide/blood MH - Peptides/blood MH - Prospective Studies MH - Severity of Illness Index MH - Vasoactive Intestinal Peptide/blood EDAT- 2006/02/04 09:00 MHDA- 2006/03/17 09:00 CRDT- 2006/02/04 09:00 PHST- 2006/02/04 09:00 [pubmed] PHST- 2006/03/17 09:00 [medline] PHST- 2006/02/04 09:00 [entrez] AID - AJG367 [pii] AID - 10.1111/j.1572-0241.2006.00367.x [doi] PST - ppublish SO - Am J Gastroenterol. 2006 Feb;101(2):266-73. doi: 10.1111/j.1572-0241.2006.00367.x.