Carcinoid tumors, also known as neuroendocrine tumors, are a rare type of cancer that originate in neuroendocrine cells. These cells, which are found in many tissues throughout the body, produce hormones that regulate various bodily functions. While carcinoid tumors can occur in any organ, they are most commonly found in the appendix, small intestine, rectum, and lungs. They can also occur in the pancreas, thymus, stomach, and other organs.
Carcinoid tumors have many other names, depending on where they occur. For example, if the tumor is in the appendix, it is sometimes referred to as an appendiceal carcinoid tumor. If it is in the lungs, it is referred to as a pulmonary carcinoid tumor. If it is in the small intestine, it is referred to as a jejunal carcinoid tumor. Carcinoid tumors can also occur in the stomach and other organs, and in these cases, they are usually referred to as gastric carcinoid tumors or other organ-specific carcinoid tumors.
No matter what organ the tumor occurs in, it is important to have it evaluated by a medical professional, as these tumors can spread to other organs if left untreated. Treatment options for carcinoid tumors depend on the size and location of the tumor, as well as the patient's overall health. Treatment may include surgery, chemotherapy, radiation therapy, hormone therapy, or a combination of these treatments.