TEP With 68-DOTANOC in Gastroenteropancreatic Neuroendocrine Tumors

Inclusion Criteria: * Age over 18 years * effective contraception or exclusion of pregnancy dosage of beta-HCG in women of childbearing age * Fortuitous discovery of suggestive tumors of TE-GEP with well documented conventional imaging (multiphase CT; MRI, US endoscopy) associated or not associated with clinical or biological signs of TE-GEP tumors (increase in tumor markers) OR * Histologically proven GEP-TE (WHO classification 2010 (26) well differentiated in the initial staging OR * Suspicion of recurrence or progression of well differentiated TE-GEP tumors on conventional imaging or laboratory tests (increase in tumor markers) OR * Clinical or biological syndrome strongly suggestive of digestive endocrine disease without identification of lesions with conventional imaging * Informed consent and patient's written * Affiliation to an insurance Exclusion Criteria: * Multiple endocrine neoplasia * TE GEP tumor not differentiated * Pregnancy and lactation * Persons protected by law * Restlessness, inability to lie still hold at least 1 hour; Claustrophobia * Poor compliance predictable or inability to undergo medical test for geographical, social or psychological * Treatment with radiotherapy, chemotherapy or other antitumor treatment within 6 weeks of previous morphological and scintigraphic examinations. In case of treatment with somatostatin analogues delayed, scans will be performed 4 weeks after the last injection. However, a shorter period may be observed to avoid to do again the initial assessment exams. * malignancy except basal cell cancers and cancer in situ of the cervix * Contraindication of injection of a contrast agent necessary for the production of multiphase scanner. * Patients who had a CT scan without injection of contrast material can not participate in the study