What Are Carcinoid Tumors?

Carcinoid tumors are rare, often slow-growing tumors that form from neuroendocrine cells found throughout the body. Carcinoid tumors most commonly arise in the gastrointestinal system, including the appendix, small intestine, or rectum, but may occur in other sites, including the lungs. In most cases, there is no clear cause of carcinoid tumors. There does not … Continued

What Are Neuroendocrine Tumors?

Once considered rare, the incidence of neuroendocrine tumors (NETs) has risen over the past few decades. More than 100,000 people in the United States have neuroendocrine tumors, which exceeds the incidence of both pancreatic cancer and stomach cancer in the U.S. NETs are tumors that originate from neuroendocrine cells, which are cells found throughout the … Continued