Link
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7865972/#:~:text=2.8.-,Carcinoid%20Tumors,responsible%20for%20producing%20carcinoid%20syndrome.
serotonin cause cancer?
Carcinoid Tumors. Increased serotonin secretion is seen in many NE tumors (NET). Serotonin that reaches the systemic circulation by bypassing hepatic inactivation is responsible for producing carcinoid syndrome.