Neuroendocrine Tumor of the Gastrointestinal Tract
A neuroendocrine tumor (NET) occurs in a unique type of cell that functions similarly to both an endocrine cell and a nerve cell. The most likely places for NETs to form are in the gastrointestinal tract and the lungs, though other locations are also possible. Because NETs develop in cells with endocrine-like traits, they may cause abnormal amounts of hormones to be released, causing numerous symptoms. Roughly 40% of NETs do this and are known as functional NETs.