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Neuroendocrine Tumour
#DiseaseDetail#Brain Tumor

What Are Neuroendocrine Tumors (NETs)?
When you first hear that you've got a neuroendocrine tumor, you'll have lots of questions about what it is and how it will affect you. There are quite a few types of this disease, and it can show up in many places in your body.

Your symptoms may depend on where your tumor is growing and what kind it is. Learn as much as you can about your own type of NET, so you can be a confident partner with your doctor when you make decisions on a treatment plan.

While all this is going on, don't neglect your emotional needs. Your doctor can tell you how to find a support group where you can talk to others who are going through the same things you are. And feel free to open up to your friends and family about how you're doing. They know you best and can be a huge source of support.

The first thing you want to find out about your condition is where your tumor is located. NETs grow in cells that make hormones -- chemicals that help control different actions in your body, like hair growth, your sex drive, and even your mood. A neuroendocrine tumor can grow in spots like your pancreas, a gland in your belly. It can also happen in your stomach, intestines, or lungs.

Some NETs are cancer, which means they can spread to other parts of your body. Many of these tumors also make hormones of their own, which can give you certain symptoms. Other kinds of neuroendocrine tumors are benign, which means they don't move from their original spot.

Most neuroendocrine tumors grow slowly -- over years, not months -- compared with other types of tumors. Often, doctors can remove or shrink them with different treatments. Other therapies can make your symptoms better.

There are many types of NETs. They're usually named after the type of cell where they grow, or the hormone they make.

Carcinoid tumors can form in many areas of your body, but they're most common in the cells of the digestive system -- the stomach, small intestines, appendix, and rectum. They can also form in the lungs or a small organ behind the breast bone called the thymus. More rarely, they grow in the pancreas, kidneys, ovaries, or testicles.

These tumors can release different types of hormones, which can affect how you feel. Doctors call these groups of symptoms carcinoid syndrome.

Pancreatic NETs grow in your pancreas. There are a few kinds of them:

Insulinomas are the most common type. Their cells make insulin, the hormone that controls blood sugar levels. Most of the time, they're not cancerous.

Glucagonomas make glucagon, a hormone that raises your blood sugar level. About half of them are cancerous, and they often spread to other parts of your body.

Gastrinomas make the hormone gastrin, which helps you digest food. These tumors can happen if you have a rare disorder called Zollinger-Ellison syndrome. About half of these gastrinomas are cancerous, and they often spread easily in the body.

Somatostatinomas make too much of a chemical called somatostatin that affects how your body makes other hormones.

VIPomas make a hormone that triggers the release of other hormones, called vasoactive intestinal peptides (VIP). Most VIPomas are cancerous.

Some other types of NETs include:

Medullary carcinoma. It shows up in your thyroid gland, an organ that's on the base of your neck. This tumor grows in cells that make a hormone that affects the levels of calcium in your body.

Pheochromocytoma. This grows in cells of your adrenal glands, which sit above your kidneys. It makes the hormones adrenaline and noradrenaline, which can increase your heart rate and blood pressure. Usually these tumors are not cancerous.

Causes
Most of the time, doctors don't know what causes NETs. But you're more likely to get them if you have certain diseases that run in your family, such as:

Multiple endocrine neoplasia type 1. This causes tumors to grow in the pancreas and other organs.

Neurofibromatosis type 1. This can cause tumors in your adrenal glands.

Von Hippel-Lindau syndrome. It makes tumors and fluid-filled sacs form in many parts of your body.

Symptoms
How a neuroendocrine tumor makes you feel depends on the type you have and where it is in your body.

With a pancreatic NET, you might have:

Blurred or double vision
Confusion
Diarrhea
Dizziness
A fast heartbeat
Headache
Hunger that's stronger than usual
Rash
Shakiness
Stomach pain
Sweating
Weakness
Weight loss without trying
Carcinoid tumors can cause:

Diarrhea
Red, warm, itchy skin, often on your face and neck
Coughing
Pain in your chest
Stomach pain
Feeling tired or sick
Trouble breathing
Weight gain or loss without trying
Other types of NETs can cause:

Appetite loss
Bleeding
Coughing
Diarrhea
Fever
Headache
A hoarse voice
A fast heart rate
Nausea or vomiting
Night sweats
Pain
Rash
Sweating
Weight gain or loss without trying
Yellowish skin or eyes
Getting a Diagnosis
When you see your doctor, he'll give you a physical exam, and he'll want to hear about how you're feeling. He might ask you questions like:

How long have you been feeling this way?
Do you have any pain? Where?
How is your appetite?
Have you gained or lost any weight?
Do you feel weak or more tired than usual?
Do you have any skin rashes?
Do you have any medical conditions?
Are there any illnesses that run in your family?
Your doctor can use a few different tests to check for a tumor in your body. You might get:

Blood and urine tests. They check the levels of hormones in your body to see if they're too high or too low.

CT scan. It's a powerful X-ray that makes detailed pictures inside your body.

MRI. It uses powerful magnets and radio waves to make pictures of your organs.

Octreotide scan. In a hospital, you'll get a shot of a small amount of a radioactive liquid through an IV. Then, you'll lie down in a scanner that can make images of your insides. The liquid has a drug called octreotide that will stick to cells on the surface of most NETs. The radiation in the fluid helps doctors see those cells on the picture from the scanner. You'll get two scans over 2 days, but you won't have to spend the night in the hospital. Each scan can take up to 3 hours, but it won't hurt.

X-ray. It uses radiation in low doses to show the inside of your body.

Biopsy. Your doctor will take a small piece of tissue from your body and look at it under a microscope to check for tumor cells. He may use a CT scan to help him find the right area. Or he may use a thin, flexible tube with a small camera, called an endoscope, to look at the lining of your digestive tract. You might be asleep or awake during the procedure, but you'll get medicine to make you more comfortable.

Molecular testing. Your doctor checks the sample of the tumor from the biopsy for certain genes, proteins, and other substances. The results help him decide what kind of treatment you need.

Questions for Your Doctor
What type of NET do I have, and where is it? Is it cancerous?
What does this mean for me?
Have you treated people with this kind of NET before?
Is surgery an option for me?
What other treatments do you recommend?
How will they make me feel?
How will we know if it's working?
What changes should I expect in my daily life?
Will my children get a NET, too?
Treatment
Doctors can treat NETs with surgery, radiation, chemotherapy, and drugs. The treatment you get will depend on:

What kind of tumor you have and how many there are
Whether it's cancerous
If it has spread to other parts of your body

Dr. Rahul Pherwani
Dr. Rahul Pherwani
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Dr. Vijay Satav
Dr. Vijay Satav
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Dr. Amarsinha Nikam
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Dr. Sujit Shinde
Dr. Sujit Shinde
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Dr. Rohit Patil
Dr. Rohit Patil
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