PCs are complex tumors which require a multidisciplinary approach and long-term follow-up.

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The small intestine and pancreas are among the most frequent abdominal sites of origin of neuroendocrine tumours. Distinctive features of these forms are represented by the relatively low incidence and the wide heterogeneity in biological behaviour. In this light, it is difficult to standardize indications for surgery and the most appropriate approach. It would be helpful for surgeons managing patients with these tumours to have guidelines for surgical treatment of small intestinal neuroendocrine tumours and pancreatic neuroendocrine tumours. The proposed guidelines represent a consensus of the working group of the European Neuroendocrine Tumor Society (ENETS).

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