neuroendocrine tumor

Neuroendocrine tumors, or more properly gastro-entero-pancreatic or gastroenteropancreatic neuroendocrine tumors  (GEP-NETs), are cancers of the interface between the endocrine (hormonal) system and the nervous system.
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Neuroendocrine tumor Neuropathology A neoplasm with a characteristic morphology, often composed of clusters and trabecular sheets of round 'blue [more]Neuroendocrine tumor - Community and Resources

A tumor derived from cells that release a hormone in response to a signal from the nervous system. Some examples of neuroendocrine tumors are carcinoid tumors, islet cell tumors, medullary thyroid carcinoma, and pheochromocytoma. These tumors secrete hormones in excess, causing a variety of symptoms.