Introduction

Neuroendocrine tumours (NETs)are rare tumours that can occur in the cells of the neuroendocrine system.

The neuroendocrine system consists of nerve and gland cells. It produces hormones and releases them into the bloodstream.

NETs are tumours (abnormal growths) that develop in the cells of the neuroendocrine system.

NETs can be malignant (cancerous) or benign (non-cancerous) and oftenbut not always grow slowly. There are a number of different types of NET, depending on the specific cells affected.

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Medically Reviewed by a doctor on 22 Aug 2016