logo logo
Search: Organ site Search: Tumor / Syndrome
WHO Classification of Tumours
Enterochromaffin cell (EC), serotonin-producing neuroendocrine tumour (NET)
Small intestine


This is a neuroendocrine tumour (NET) characterized by the secretion of serotonin by enterochromaffin-like (ECL) cells. Serotonin-producing carcinoids are unusual in the upper small intestine. In the duodenum they only exceptionally give rise to a clinical carcinoid syndrome
Click for details
Bosman FT, Carneiro F, Hruban RH, Theise ND (Eds.)
WHO Classification of Tumours of the Digestive System.
4th Edition
International Agency for Research on Cancer: Lyon 2010


Commentary: Neuroendocrine tumours of the digestive system