Are you aware of Small Intestine Cancer? Let's talk in detail!

Today we're going to talk about a disease that you rarely hear about, but can be very important. That's small intestine cancer. You may not have much idea about this. But that's okay, let's talk about it simply, in a way that you can understand.

What is Small Intestine Cancer?

Simply put, Small Intestine Cancer is the growth of cancer cells in your small intestine, or what we call the " small intestine ". Did you know that the small intestine is a very important part of our digestive system ? This system also includes many other organs, such as the liver and pancreas . The small intestine is located in our gastrointestinal (GI) tract . That is, it is located on the way from the mouth, through the esophagus, to the stomach, then to the small intestine, and from there to the large intestine (colon). To be precise, the stomach and large intestine are connected by this small intestine. There are three main parts of the small intestine:

• Duodenum : This is the first part closest to the stomach.
• Jejunum: This is the middle part of the small intestine.
• Ileum: This is the last and longest part of the small intestine.

Most small bowel cancers occur in either the colon or the ileum.

How common is this cancer?

In fact, small bowel cancer is a very rare condition . According to American data, this type of cancer accounts for about 3% of all cancers in the digestive tract. Colon cancer , rectal cancer, esophageal cancer, and stomach cancer are more common. So, you can imagine that this is a bit low.

What are the types of small bowel cancer ?

There are several types of cancer that occur in the small intestine. These are classified based on the type of cell in which the cancer begins.

• Carcinoid tumors: These start in your neuroendocrine cells . These cells help your body produce hormones and control the secretion of digestive juices in the small intestine. Carcinoid tumors account for about half of all small intestine cancers.
• Adenocarcinomas: These start in the glandular cells that line the lining of the small intestine. They account for about a third of all small intestine cancers.
• Sarcomas: These start in cartilage.or connective tissue such as muscle. The most common type of sarcoma affecting the small intestine is a gastrointestinal stromal tumor (GIST) . It was previously called leiomyosarcoma.
• Lymphoma: These start in cells called lymphocytes . Lymphocytes are a type of white blood cell found in your lymphatic system . The lymphatic system is a very important part of our immune system. It helps the body fight off harmful cells and disease-causing germs.

What are the symptoms of this cancer?

The symptoms of small bowel cancer can vary. They depend on the type of tumor and its location. Sometimes, tumors can be present but not cause any symptoms (asymptomatic) . For example, carcinoid tumors often cause no symptoms. They are sometimes found incidentally during imaging tests for another condition. Common symptoms include:

• Stomach pain or cramping.
• A lump in the stomach that feels like it's being caught in the hand.
• Nausea, vomiting, and diarrhea.
• Weight loss for no reason.
• Anemia ( blood deficiency).
• Jaundice ( yellowing of the eyes or skin).
• Bloody stools (may appear red or black in the toilet).
• Redness of the skin, especially the hands and upper body, turning purple.

What are the causes of small bowel cancer?

Malignant tumors of the small intestine develop when cancer cells divide rapidly and grow together into a mass. Over time, these cancer cells can break away from the original tumor and travel through the lymph nodes or blood to other parts of the body, where they can form a new tumor (secondary tumor). This process is called metastasis . Cancer cells develop because of genetic mutations . This means that changes occur in the DNA of a cell, causing the cell to divide uncontrollably. Researchers still don't know exactly what causes these changes.

What are the risk factors for this cancer?

A risk factor is anything that increases the chance of developing a disease. However, having a risk factor does not mean that you will develop cancer. Similarly, having no risk factors does not mean that you will not develop cancer. There are several risk factors that can affect small bowel cancer:

• Age: The risk of most types of small bowel cancer increases with age. The average age of diagnosis is around 65 years.
• Gender: Men are slightly more likely to develop this cancer.
• Race: According to data from the United States, this disease is slightly more common among black people, while lymphoma is more common among white people.
• Genetic conditions: If your parents, siblings, or children have certain conditions, you may also be at increased risk. Examples include (Familial Adenomatous Polyposis - FAP) , (Peutz-Jeghers syndrome) , (Hereditary Nonpolyposis Colorectal Cancer - HNPCC) , and (Lynch syndrome) .
• Inflammatory conditions: Diseases that cause long-term inflammation of the intestines, such as Crohn's disease and Celiac disease , can increase the risk.
• Autoimmune diseases or a weakened immune system: Diseases that weaken the immune system, such as HIV/AIDS , Crohn's disease , and Celiac disease, can increase your risk. Also, treatments such as radiation therapy can weaken the immune system, increasing your risk of small bowel cancer. Medications that suppress the immune system after an organ transplant can also increase your risk.

Some studies suggest that diet (high salt or smoked foods and red meat), tobacco use, and alcohol consumption may also affect the risk of small bowel cancer.

If you think you have any of these risk factors, it's best to talk to a doctor .

How is small bowel cancer diagnosed?

Small bowel cancer can be challenging to diagnose because it is so rare. Also, the symptoms vary depending on the type of tumor. You may need to undergo extensive tests and procedures before you receive a diagnosis.

Physical examination and medical history

The doctor will examine you, check your general health, check for signs of illness, and ask about your past illnesses, treatments, and health habits.

Blood tests

• Blood chemistry studies: These measure the amount of certain substances released into the blood from organs and tissues. If there is an abnormal (high or low) amount of a substance, it may indicate a disease in the organ or tissue that produces that substance. For example, a liver function test may be done to see if cancer has spread to the liver.
• Complete blood count (CBC): This test gives your doctor information about the cells in your blood. Small bowel tumors can cause bleeding, which can cause a decrease in the number of red blood cells, causing anemia.

Imaging

• Endoscopy: This involves looking inside the gastrointestinal (GI) tract using a thin, tube-like instrument (endoscope). This tube has a light and a camera on it.During an upper endoscopy, the doctor inserts an endoscope through the mouth and examines the esophagus, stomach, and first part of the small intestine (duodenum). A special endoscope called a double-balloon enteroscopy can look deeper into the small intestine. During an endoscopy, the doctor may take tissue samples ( biopsies ) and send them for testing. They are then examined under a microscope to see if there are any signs of disease.
• Capsule endoscopy (pill camera): This involves swallowing a capsule containing a small camera. As the capsule passes through the body, it takes pictures of the GI tract. These pictures can be downloaded to a computer and viewed by the doctor. Although the name may be a bit confusing, this procedure does not use an endoscope.
• CT scan (CT scan - CAT scan): This is a procedure that takes a series of detailed pictures of the inside of the body from different angles. These pictures are displayed on a computer connected to an X-ray machine. Sometimes a dye may be injected into a vein or given to drink. This allows the organs or tissues to be seen clearly.
• MRI (magnetic resonance imaging): This uses a magnet, radio waves, and a computer to make a series of detailed pictures of the inside of the body. Although both an MRI and a CT scan provide similar information about how a tumor is affecting soft tissues, a CT scan is most often used to detect small bowel cancer.
• Abdominal X-ray: An X-ray of the organs in the abdomen. An X-ray is a beam of energy that passes through the body and is reflected onto film, creating a picture of the inside of the body.
• Barium X-ray: This involves coating your GI tract with a chalky substance called barium. The barium makes the GI tract visible on an X-ray. In an upper GI series , a series of X-ray pictures are taken as the barium passes through the GI tract (esophagus, stomach, small intestine). In a lower GI series (barium enema) , a liquid barium is inserted into the rectum. X-ray pictures are taken as the barium coats the lower GI tract.

Surgery

If other tests don't provide enough information to make a diagnosis, your doctor may decide to perform surgery. These procedures allow your doctor to examine your organs directly. If there is suspicious tissue, a biopsy is taken to check for signs of cancer. Surgery may be performed to:

• Laparoscopy: In this procedure, a thin, telescope-like tube (laparoscope) is inserted through one or more small incisions in the abdomen. The laparoscope allows the doctor to see the abdominal organs for signs of cancer.
• Laparotomy:In this, the doctor makes an incision in the abdominal wall and examines the abdominal organs for signs of cancer.

What are the stages of small bowel cancer?

The stage of a cancer tells you how big the tumor is, where it is, and whether it has spread (metastasized). The tests and procedures that determine the stage of small bowel cancer are usually done at the time of diagnosis. The type of small bowel cancer you have (carcinoid tumor, adenocarcinoma, sarcoma, or lymphoma) determines the staging system your doctor uses.

What are the treatments for this?

The treatment you receive depends on the type of cancer you have, its stage, the location of the tumor, and the characteristics of the cells within the tumor. Your preferences also influence treatment decisions.

Surgery

Surgery is the most common treatment for small bowel cancer. Surgery may include:

• Resection: Surgery to remove all or part of the organ where the cancer is located. If the cancer has spread, the doctor may remove parts of the small intestine and nearby organs. Then, an anastomosis (reconnecting the cut ends of the intestine) may be performed. Lymph nodes near the small intestine may also be removed and examined to see if the cancer has spread.
• Bypass: A surgical procedure that allows food in the small intestine to bypass the tumor if there is a tumor blocking the intestine but cannot be removed.

Chemotherapy

Chemotherapy is the use of drugs to stop the growth of cancer cells. They either kill the cells or stop them from dividing. Depending on the chemotherapy treatment, the drugs may target cancer cells in a specific part of the body (regional chemotherapy) or kill cancer cells throughout the body (systemic chemotherapy). Your doctor may prescribe chemotherapy to kill any cancer cells that may remain after surgery (adjuvant therapy) . If your cancer has spread (metastasized), you may be given systemic chemotherapy.

Radiation therapy

Radiation therapy is the use of high-energy X-rays or other types of radiation to kill cancer cells or stop them from growing. Your doctor may recommend radiation therapy if your cancer cannot be removed with surgery. Radiation therapy may also be given as part of palliative care to help relieve symptoms. Sometimes, radiation therapy is given together with chemotherapy (chemoradiation therapy) to kill any remaining cancer cells after surgery.

Somatostatin analogs

The doctor treats carcinoid tumors of the small intestine with somatostatin analogs.These medications stop your body from making too many hormones. This can help reduce symptoms and control the disease. Examples of these medications include lanreotide and octreotide.

Further research is needed on the benefits of combining radiation therapy and chemotherapy after surgery for small bowel cancer.

Targeted therapy

Targeted therapies work by identifying weaknesses in cancer cells and using those weaknesses to destroy them. Researchers are currently studying targeted therapies that may help treat adenocarcinomas, GISTs, and lymphomas.

Immunotherapy

Immunotherapy works by strengthening your immune system and increasing its ability to fight cancer cells. Your immune system naturally fights off abnormal cells and dangerous invaders like germs. However, sometimes cancer cells can get past the immune system's defenses. Immunotherapy makes it easier for the immune system to recognize and destroy cancer cells. Depending on the type of gene mutations in your tumor, your doctor may recommend immunotherapy.

Clinical trials

Clinical trials are studies to determine whether new cancer treatments are safe, effective, or better than standard treatments. Currently, adjuvant chemotherapy, targeted therapies, and immunotherapy are being studied in clinical trials. Ask your doctor if you are a good candidate for a clinical trial.

What is the cure rate for small bowel cancer?

Survival rates vary depending on the type of small bowel cancer, its stage, and where in the small bowel the cancer started. For example, 65% of people diagnosed with early-stage adenocarcinomas are alive after five years. This rate is much lower, at 4%, for late-stage cancers. The five-year survival rate for early-stage carcinoid tumors is 95%, while for late-stage cancers it is 42%.

Ask your doctor how the symptoms of your cancer affect your prognosis.

What questions should I ask my doctor?

At a time like this, you may have many questions on your mind. Don't be afraid. Talk openly with your doctor. Here are some important questions you can ask:

• What type of tumor do I have?
• What stage is my cancer in?
• What factors affect my chances of recovery?
• What treatment do you recommend?
• What are the risks and benefits of these treatments?
• How long will it take to recover from my treatment plan?
• What results should I expect based on my cancer, general health, and response to treatment?

Because small bowel cancer is so rare, it can be difficult to understand the outcomes and treatment options. Many factors affect your care plan and the likelihood of treatment success. Be prepared to talk to your doctor about how the type of tumor you have affects your treatment options. Depending on your cancer, your doctor may recommend a combination of surgery and chemotherapy to remove your tumor and prevent it from spreading.

Finally, things to remember (Take-Home Message)

Small Intestine Cancer is a condition that is less commonly heard of, but it deserves attention.

• This is very rare , but it is important to seek medical advice immediately if symptoms occur.
• Be aware of symptoms like stomach pain, unexplained weight loss, and bloody stools.
• If you have risk factors , talk to a doctor and get the necessary tests done.
• There are various tests for diagnosis . Don't worry, doctors will help you.
• There are several treatment options , depending on your condition.
• If detected early, the chances of recovery are high.

The most important thing is that if you have any doubts or fears about this, do not suffer alone, but talk to a trusted doctor . They will give you the guidance and support you need. Stay healthy!

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Small Intestine Cancer, Cancer, Digestive System, Symptoms, Cancer Treatment, Intestine, Small Intestine Cancer