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Signs & Symptoms

Progressive Gastrointestinal Neuroendocrine Tumors

The Signs and Symptoms of GI NET

Diagnosing gastrointestinal (GI) neuroendocrine tumor(s) (NET) can take several years because GI NET tend to be slow growing and some patients may have no noticeable symptoms in the early stages. Often, patients are diagnosed during procedures for other conditions.

Your doctor may describe your GI NET as "nonfunctional." This means that your tumor does not release hormones that cause specific symptoms. Symptoms of nonfunctional GI NET are due to tumor growth. Symptoms can include:

  • Abdominal pain
  • Constipation
  • Diarrhea
  • Change in stool color
  • Weight loss for no known reason
  • Feeling tired
  • Feeling bloated
  • Blood in the stool
  • Pain in the rectum