Causes and Risks Carcinoid syndrome is the pattern of symptoms that typically are exhibited by people with carcinoid tumors.
Carcinoid tumors secrete excessive amounts of the hormone serotonin .
Normally, an amino acidcalled tryptophan is used by the body to manufacture niacin and certain proteins ,butin carcinoid syndrome, it gets diverted to form serotonin. A specific type of heart valve damage can occur, as well as other cardiac problems. In children, carcinoid tumors usually occur in the appendix, and removal of the appendix results in a complete cure. Carcinoid syndrome Please read this Important notice . Please read it.