Who is most prone to getting carcinoid tumors/syndrome?

Not known: Carcinoid tumors of the bowel are neuroendocrine tumors that have a high propensity of spreading to the liver and producing the carcinoid syndrome. The lesions arise anywhere in the bowel and respond to the same chemo used for small cell neuroendocrine of lung. They even arise in organs like pancreas, like Jobs had but are not pancreatic tumors.. Cause is not known but possibly viral in etiology