Carcinoid Syndrome – NETRF

Carcinoid syndrome is caused by the release or secretion of excessive amounts of bioactive substances (peptides and other hormones) from a neuroendocrine tumor (NET) into the bloodstream. 1, 2 NETs that secrete such substances are considered to be functional NETs. 1 The body’s normal neuroendocrine cells also produce these active substances but in the case of carcinoid syndrome, the …

https://netrf.org/for-patients/living-with-nets/carcinoid-syndrome/