Definition:
Carcinoid syndrome is a group of symptoms associated with carcinoid tumors -- tumors of the small intestine, colon, appendix, and bronchial tubes in the lungs.
Alternative Names:
Causes, incidence, and risk factors:
Carcinoid syndrome is the pattern of symptoms sometimes seen in people with carcinoid tumors. These tumors are rare, and often slow growing. Carcinoid syndrome occurs only 10% of the time, usually after the tumor has spread to the liver or lung. These tumors release too much of the hormone serotonin, as well as several other chemicals that cause the blood vessels to open (dilate). More carcinoid tumors are being diagnosed today than in the past.
References:
Kulke MH. Clinical presentation and management of carcinoid tumors. Hematol Oncol Clin North Am. 2007;21:433-455. Robertson RG, Geiger WJ, Davis NB. Carcinoid tumors. Am Fam Physician. 2006.74:429-434.
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