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Neuroendocrine Tumors

Neuroendocrine tumors (NET) are rare types of cancer that can occur in different areas throughout the body. When NET produce hormonal symptoms, they are referred to as being "functional." When they do not, they are referred to as being "nonfunctional." NET can be commonly found in the gastrointestinal (GI) tract, pancreas, and lungs.

You can learn more about the different types of NET by visiting the pages below.

GI NET

GI NET are NET that may arise anywhere in the GI tract. They are a type of carcinoid tumor. GI NET can be difficult to diagnose. This is because they can cause symptoms that make them seem like GI diseases, such as irritable bowel syndrome (IBS) or inflammatory bowel disease (IBD).

PNET

Pancreatic NET (PNET) are NET in the pancreas, and, unlike NET of the GI tract and lungs, do not typically cause carcinoid syndrome. Some PNET can cause very specific symptoms related to the hormones they produce; other types of PNET may cause symptoms that depend more on the size of the tumor.

Lung NET

Lung NET are NET in the lung. They are a type of carcinoid tumor, and may also be called lung carcinoids or bronchial NET. Some types of lung NET can cause symptoms that make them seem like respiratory diseases; however, some patients may not have symptoms at the time they are diagnosed.

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