The diagnosis and the follow-up of neuroendocrine tumors can be difficult to assess, especially in the detection of metastasis as they can grow in different organs such as liver, lungs, bones or lymph nodes. Nowadays, the diagnosis is made with two main imaging techniques which are the thoraco-abdomino-pelvic CT-scan and a scintigraphic method (Octreoscan and sometimes a TEP-scan). The use of a whole-body MRI is more and more often used for the detection and evaluation of tumors and metastases; therefore, it could be used for neuroendocrine tumors. The MRI would allow to replace the two imaging techniques and to avoid the use of irradiation but also to have a better detection of metastases. This purpose of the study was to evaluate this statement by assessing the consistency between the routine techniques and the MRI and finally to update the recommendation if the study is positive.