The NET Alliance™ and Novartis Oncology continue their commitment to improving knowledge and management of neuroendocrine tumors, and empowering patients to be more informed advocates.

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What are
neuroendocrine tumors?

Neuroendocrine tumors, known as NET, may also be called neuroendocrine cancer. They form in cells of the neuroendocrine system. The neuroendocrine system controls many functions in your body, like digestion and how your body responds to stress or injury.

There are many different types of neuroendocrine tumors. They vary in size and how fast they grow. Neuroendocrine tumors can also spread (metastasize) to other parts of the body, like the liver or bone.

In fact, 1 out of every 2 patients is diagnosed with a neuroendocrine tumor that has already spread to another part of the body. This may happen because some NET

  1. Are hard to find until they have grown or spread
  2. Don’t cause symptoms until they have grown or spread
  3. Cause symptoms that make them seem like other diseases, so they may take longer to be diagnosed

If you are newly diagnosed with a NET, visit start here! You will find information for patients and caregivers who are new to NET.

  • Some types of NET do not cause symptoms, while others cause general gastrointestinal and respiratory symptoms that may make them seem like more common diseases
  • Unlike most other cancers that start in one place, NET can occur wherever there are neuroendocrine cells in the body
  • Most NET occur in the gastrointestinal (GI) system, which includes the stomach, intestines, and other organs