title: Imaging in multiple endocrine neoplasia type 1: recent studies show enhanced sensitivities but increased controversies.
abstract: In multiple endocrine neoplasia type 1 (MEN1) patients, a number of recent studies compare the ability of different, new imaging modalities to existing modalities to localize the important neuroendocrine tumors (NETs) that contribute to their decreased life expectancy (pancreatic NETs [pNETs] and thymic carcinoids). These included the use of68Ga-DOTATOC-PET/CT, endoscopic ultrasound and MRI. The current paper analyzes these results in light of current guidelines and controversies involved in the treatment/management of MEN1 patients. Particular attention is paid to results in these studies with thymic carcinoids and nonfunctional pNETs/gastrinomas, which recent studies show are particularly important in determining long-term survival. These studies show a number of promising imaging results but also raise a number of controversies, which will need to be addressed both in their use initially and for serial studies in these patients.
authors.affiliation: Department of Medicine & Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan.
authors.forename: Tetsuhide
authors.initials: T
authors.lastname: Ito
authors.affiliation: Digestive Diseases Branch, NIDDK, NIH, Bethesda, MD 20817, USA.
authors.forename: Robert T
authors.initials: RT
authors.lastname: Jensen
keywords: MEN1; MRI; Zollinger–Ellison syndrome; endoscopic ultrasound; hyperparathyroidism; insulinoma; pancreatic neuroendocrine tumor; somatostatin-receptor scintigraphy; thymic carcinoid
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