Are you aware of Gastrointestinal Neuroendocrine Tumors (GI NETs) that can develop in your digestive system?

Do you sometimes get stomach aches, bloating, or other symptoms that seem to be coming on all the time? Or do you lose weight for no apparent reason? While these can be symptoms of common illnesses, there may be a rare condition behind them that you should be aware of. Today we are going to talk about one such condition. It is called Gastrointestinal Neuroendocrine Tumors , or GI NETs for short. Don't worry, we will talk about this simply.

What are these digestive system neuroendocrine tumors (GI NETs)?

Simply put, GI NETs are a rare type of cancer that develops in the neuroendocrine cells in your digestive system. Now you might be wondering what neuroendocrine cells are. These are a special type of cell that connects our nervous system and endocrine system. They are like little message centers. These cells are found in many places in our bodies, including the digestive system.

Your gastrointestinal tract is a long, tube-like system that digests the food we eat, absorbs nutrients, and eliminates waste. These `GI NET` tumors (formerly called `carcinoid tumors`) most often develop in your small intestine and rectum . However, they can also develop in your stomach, appendix, and esophagus. Sometimes, these tumors can spread outside the digestive tract, such as to your liver .

Who is most affected by this GI NET condition?

This is a relatively rare condition. According to statistics, this condition affects about 4 in 100,000 people . Even in a country like the United States, only about 8,000 adults are newly diagnosed with this disease each year.

This condition usually affects people between the ages of 55 and 65. However, it can develop in adults of any age. Whites are slightly more likely to develop this condition than blacks. Also, data shows that women are slightly more likely to develop this `GI NET` than men.

What are the symptoms of GI NET?

Here's the important thing. Some people can have these tumors in their bodies without any symptoms . Sometimes they are discovered by chance when something like a `scan` is done for some other reason.

However, if symptoms do appear, they can be similar to those of common, less serious illnesses. That's why they can sometimes be detected too late. See if these symptoms sound familiar to you:

• Stomach pain: This could be a sign that you have blocked intestines, possibly due to a GI NET tumor.
• Diarrhea:Frequent bowel movements. This symptom is especially common in people with a condition called ``Carcinoid Syndrome'' (another set of symptoms associated with ``NET''), or in those who have had their gallbladder or part of their intestine surgically removed.
• Nausea and vomiting: If nausea and vomiting persist, it may be a sign of a serious illness.
• Unintentional weight loss: If you lose weight quickly without dieting, exercising, or for no apparent reason, it is a common symptom of GI NETs.
• Blood in stool: If your stool is dark red or tarry, these could be signs of intestinal bleeding.
• Jaundice: This causes your skin and the whites of your eyes to turn yellow.
• Fatigue: This is not just sleepiness. It is feeling incredibly tired all the time, too tired to do anything.

Remember, just having these symptoms does not mean you have GI NET. However, if these symptoms persist, it is important to see a doctor for advice.

What are the causes of GI NET?

In fact, medical researchers have not yet been able to find a definitive cause for GI NETs. However, they have found that people with low stomach acid (hypochlorhydria) have a link to the condition.

Additionally, people with certain inherited conditions and syndromes may be at increased risk of developing GI NETs. Some of these conditions include:

• Multiple endocrine neoplasia (MEN): There are two types of this. One type (MEN1) causes your thyroid, parathyroid, or adrenal glands to become overactive or develop tumors. The other type (MEN2) causes your pancreas, pituitary, or parathyroid glands to become overactive or develop tumors.
• Von Hippel-Lindau disease: This is also a very rare condition. It causes non-cancerous (benign) tumors to form in various parts of the body.
• Neurofibromatosis type 1: This is also a rare condition. It causes tumors to form on the skin and nerves, and can also affect the eyes and other parts of the body.

How do doctors diagnose this GI NET condition?

If you have the symptoms mentioned above, or if there is any suspicion for any other reason, doctors will perform various tests.

• X-ray: This can take pictures of what's inside the body. However, sometimes a GI NET tumor is too large or too small to be seen on an X-ray. In that case, your doctor may recommend other types of scans.
• Computed tomography (CT) scan:This uses a computer and a series of X-rays to create a three-dimensional (3D) view of your organs and bones. A CT scan can show things like the size of the tumor and whether it has spread to the liver or other areas.
• Magnetic resonance imaging (MRI): This test uses a magnet, radio waves, and a computer to produce very clear pictures of your organs and bones.
• Endoscopy: In this procedure, doctors use an endoscope, a thin, tube-like instrument with a light and camera on the front, to look inside your upper digestive tract. This tube can be inserted through your mouth or rectum. A colonoscope is used to look at the lower part of your digestive tract.
• Endoscopic ultrasound (EUS): This uses an endoscope and high-energy sound waves to take pictures of the digestive system. The endoscope is inserted through the mouth or rectum, and a probe at the end sends sound waves into the digestive tract. The echoes that bounce off the tissues inside create images called sonograms.
• Positron emission tomography (PET) scan: This test detects neuroendocrine tumors using a special dye (which is specifically designed to detect neuroendocrine tumor cells).
• Biopsy: This is the most common test used to confirm the diagnosis. In this, a small piece of tissue is taken from the suspicious area and examined under a microscope to see if there are any cancer cells.

Are there different grades of neuroendocrine tumors?

Yes, doctors use a grading system to classify these tumors. It helps them plan their treatment. The stage of a tumor is determined by examining the cancer cells under a microscope. They look at how many cells are dividing, how fast they are dividing, and how similar the cells are to cancer cells than to healthy cells. Here are the `GI NET` stages:

• Grade 1 (low-grade tumor): These cells divide very slowly. This means the tumor grows very slowly.
• Grade 2 (intermediate-grade tumor): The rate at which these cells divide is moderate.
• Grade 3 (high-grade tumor): These cells divide very quickly, so the tumor grows very quickly.

What are the treatments for Gastrointestinal Endocrine Tumors (GI NETs)?

There are several ways to treat GI NETs. Doctors choose the best treatment for you based on many factors, including the grade of your cancer, possible side effects from treatment, your overall health, and your personal preferences. There are several main treatment options: active surveillance, surgery, and medical treatments.

What is Active Surveillance?

If the tumor is growing very slowly and has a low risk of spreading to other parts of the body, doctors may suggest a treatment called "active surveillance." This involves checking you at regular intervals , rather than starting major treatment right away.

• Imaging tests like a CT scan.
• Blood tests such as a complete blood count (CBC).
• Physical examination.

What surgeries are performed for GI NET?

The type of surgery performed for GI NET depends on factors such as the location of the tumor and whether it has spread to other parts of the body.

It is very important that before you have surgery, your surgical team knows if you have `(Carcinoid Syndrome)` (a condition that shows signs of `neuroendocrine tumors`). Because, if you have `(Carcinoid Syndrome)`, surgery can cause complications that can be life-threatening. If the surgeon knows about this, he or she will try to prevent these complications by giving you special medications before, during, and after surgery.

Some of the most common surgeries performed for GI NET are:

• Partial gastrectomy: This involves removing part of your stomach.
• Small intestine resection: This involves removing the part of the small intestine that contains the tumor. The surgeon may also perform an anastomosis (reconnecting the two ends of the cut intestine back together). The lymph nodes near the small intestine are usually also removed and examined under a microscope to see if there are any cancer cells.
• Appendectomy: Surgeons can remove your appendix either through a large incision or through laparoscopic surgery (a small incision with a camera inserted).
• Hemicolectomy: In this, the right or left side of the colon is removed, along with the nearby blood vessels and lymph nodes.
• Lower anterior resection: Surgeons remove part of your rectum, but leave your anus intact. This allows you to have normal bowel movements.
• Abdominoperineal resection (APR): This surgery removes your anus, rectum, and part of your colon . This surgery is often accompanied by a colostomy. This means that an opening is made from your colon to the surface of your abdomen so that stool (digestive waste) can pass through.
• Liver resection: This surgery removes GI NETs that have spread to the liver.

What are the complications or side effects of this surgery?

All of these surgeries can have significant side effects . Sometimes you may need extra help at home while you recover. Ask your doctor what to expect after the specific surgery you are having.

Will GI NET surgery affect my lifestyle?

Yes, there can be side effects . Since these surgeries often remove part of your digestive system, there may be changes in the way you eat and drink, even how you go to the bathroom. Your surgeon will explain exactly how the surgery will affect you, and what he or she will do to manage any digestive problems.

What other treatments are available for GI NET?

Doctors may sometimes combine these treatments with surgery:

• Chemotherapy: This uses different types of drugs designed to kill cancer cells.
• Targeted therapy: This uses drugs or other substances that attack only cancer cells, without harming normal healthy cells.
• Immunotherapy: This uses your body's own immune system to kill cancer cells or stop them from growing.
• Radiation therapy: This uses strong beams of energy to kill cancer cells or stop them from growing.
• Somatostatin analogs: These are synthetic forms of the hormone somatostatin. Your somatostatin works by stopping your body from making too much hormone.

What are the side effects or complications of these treatments?

Each of these treatments affects each person differently. Therefore, it is important to clearly discuss the benefits and side effects of each treatment with your doctor. This will help you understand how each treatment will affect you. Your doctor will recommend treatments based on your overall health and your personal preferences.

Can Gastrointestinal Endocrine Tumors be prevented?

Unfortunately, there is currently no way to prevent GI NETs. However, medical researchers have found a link between certain hereditary syndromes and/or medical conditions and the risk of developing neuroendocrine tumors. Talk to your doctor about your medical history and your family's medical history. He or she may recommend special tests to detect early signs of GI NETs, ​​so that tumors can be caught and treated early.

If I have this condition, what should I expect?

Your prognosis depends on when the cancer is diagnosed and treatment is started. Approximately 97% of people who receive treatment before the cancer has spread to other parts of the body will survive.Five years after diagnosis. If the tumor has spread to nearby tissues or lymph nodes, that five-year survival rate drops to 95%. Approximately 67% of people with GI NETs that have spread outside the digestive tract are alive five years after diagnosis.

GI NET can come back. Depending on the size, grade, and location of the tumor, you may need to have regular follow-up tests. For example, your doctor may recommend a CT scan once a year for the first three years after treatment and a physical exam every year. Ask your doctor about follow-up appointments and tests that are specific to your condition.

How do I take care of myself?

If you have a gastrointestinal neuroendocrine tumor, you will likely need surgery. Surgeons usually use open incisions, which are larger than laparoscopic surgery. This means you will need to stay in the hospital for a few days and then recover at home for a few weeks.

When should I go to the Emergency Room?

You may have a regular follow-up schedule to see if your cancer has come back. Ask your surgeon what symptoms after surgery may be signs of a serious condition. If you experience any of the following symptoms, you should seek medical attention immediately:

• Sudden severe difficulty breathing.
• If the fever is higher than 100.4 degrees Fahrenheit (38.3 degrees Celsius).
• If the pain is severe, or if it can't be controlled with your painkillers.
• If there is green, foul-smelling pus coming out of the surgical wound, especially if the area around the wound feels hot to the touch, or if it is very red.
• If you are vomiting continuously or have diarrhea.

Gastrointestinal neuroendocrine tumor (GI NET) can be a life-changing illness. That's because many people with this condition have to undergo surgery to remove part or all of their digestive system. Your surgery may change the way you eat, drink, and go to the bathroom. Your medical team knows that adjusting to these changes isn't always easy. If you have any questions or concerns, share them with your doctor. They will understand your situation and help you find solutions.

What are the most important things we want to take home from this story?

• `GI NET` is a relatively rare type of cancerous tumor , but it is important to be aware of it.
• Some people may have these without any symptoms , but be aware of symptoms like stomach pain, diarrhea, and unintentional weight loss.
• Let these grow.The exact cause has not yet been found, but some hereditary factors may play a role.
• There are various tests to diagnose diseases, such as `CT scan`, `MRI`, `Endoscopy`, and `Biopsy`.
• Treatment options include surgery, chemotherapy, and radiation therapy . Your doctor will decide which treatment is best for you.
• Early diagnosis and initiation of treatment greatly increases the chances of recovery.
• If you have any doubts or questions about this, don't be afraid to talk to your doctor . They are there to help you.

` GI NET, Gastrointestinal Neuroendocrine Tumors, Cancer, Intestinal Cancer, Neuroendocrine Tumors, Digestive System, Symptoms