While there is no single set of signs or symptoms of neuroendocrine tumors, you should schedule an appointment with your doctor if you experience the following changes to your body. These signs and symptoms could be caused by gastrointestinal tract-specific neuroendocrine tumors.
In its early stages, neuroendocrine tumors are usually undetected and typically found during a surgery or x-ray for an unrelated condition. People diagnosed with gastrointestinal-tract neuroendocrine tumors may experience the following tumor-related symptoms or signs:
General cancer symptoms:
Other symptoms (dependent on tumor size and tumor location):
There are two types of neuroendocrine tumors: functional and non-functional. Functional neuroendocrine tumors produce an overabundance of hormones, while non-functional neuroendocrine tumors don’t produce enough hormones. Sixty percent of diagnosed neuroendocrine tumors are non-functional. The location where the cancer develops will determine which hormone(s) the cancer cells secrete. Your treatment plan will be determined by your symptoms, if any, and whether the tumor is functional or non-functional.
Neuroendocrine tumors can also be classified as indolent (slow-moving) or aggressive. Tumors are usually classified after Banner MD Anderson’s expert specialists gather more information through testing.
An indolent neuroendocrine tumor, also known as a carcinoid tumor or low-grade neuroendocrine tumor, has cells that look like healthy, noncancerous cells and are slow-growing. This type of neuroendocrine tumor has a lower risk of metastasizing (spreading).
An aggressive neuroendocrine tumor has cells that look abnormal or different from healthy noncancerous cells. This type of neuroendocrine tumor is fast-growing and considered more aggressive.
Because indolent neuroendocrine tumors look similar to healthy cells, they may not respond as well to chemotherapy as aggressive neuroendocrine tumors would. Learn more about the treatment options for GI tract neuroendocrine tumors.
To determine how fast the cancer is growing and dividing, Banner’s expert cancer specialists may utilize the following grade scales:
At Banner MD Anderson, our caring staff is here for you to provide support throughout your cancer journey. If you notice changes in your body and/or are exhibiting signs and symptoms, schedule an appointment with your doctor today.