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Esophageal Cancer Treatment in Iran Details

What is Esophagus?

The tube that attaches the throat to the stomach is known as the esophagus.

This 10-inch long muscular tube is a part of the digestive tract from where the food travels from the esophagus to the stomach.

The esophagus is comprised of four layers that include the followings:

  • Outer Layer: This outer layer covers the esophagus.
  • Inner Layer or Lining: This layer helps in passing the food to the stomach as this layer is properly moist.
  • Muscle Layer: This layer helps in pushing down the food to the stomach.
  • Submucosa: the glands present in this layer makes mucus. This mucus moisturizes the esophagus.

Esophageal Cancer Treatment in Iran

What is Esophageal Cancer?

The uncontrollable growth of cancer cells in the esophagus causes esophageal cancer.

This cancer begins at the inner layer of the esophagus that can spread further to the other layers of the esophagus and to different body parts.

Esophageal cancer has been categorized into two types that include the followings:


This type of esophageal cancer starts in the glandular tissue in the lower part of the esophagus.

The stomach and the esophagus appear together in this lower part of the esophagus.

Squamous Cell Carcinoma

Squamous cell carcinoma begins in the squamous cells lining the esophagus.

This type of esophageal cancer typically occurs in the middle and upper part of the esophagus.

Causes of Esophageal Cancer

There are known causes of esophageal cancer that happens when the cells in esophagus develop errors in their DNA.

These cells grow and divide abnormally due to these errors.

These abnormal cells eventually form a tumor in the esophagus that spreads to surrounding structures, including different body parts.

Esophageal Cancer Treatment in Iran

Symptoms of Esophageal Cancer

  • Hoarseness or coughing
  • Difficulty in swallowing
  • Fatigue
  • Heartburn or indigestion
  • Unexplained weight loss
  • Frequent choking while eating
  • Chest burning, pain or pressure

Stages of Esophageal Cancer

Stage 0: In this stage, the abnormal or unusual cells can only be seen in the layer of cells lining the esophagus.

Stage 1: The first stage is marked by the presence of cancer cells in the layer of cells lining the esophagus.

Stage 2: In the second stage, cancer has reached the outer wall of the esophagus or the muscle layer of the esophagus.

Also, these cancer cells may have invaded 1-2 surrounding lymph nodes.

Stage 3: The third stage is marked by the spread of cancer into the connective tissue wall or deep into the inner muscle layer.

Also, this cancer has spread to more lymph nodes close to the esophagus, and they may also spread beyond esophagus in the surrounding organ.

Stage 4: This is considered as the advanced stage of esophageal cancer.

Now cancer has spread to lymph nodes far away from the esophagus or to different organs.

Esophageal Cancer Treatment in Iran

Diagnosis of Esophageal Cancer

The medical history and symptoms of a patient are examined for diagnosing esophageal cancer.

Some of these tests include:

  • Biopsy: Tissue or cells are taken from the esophagus while performing a biopsy.
    The presence of cancer cells is checked by examining them under a microscope.
  • Barium Swallow X-ray: A patient is required to swallow barium that helps in identifying certain problems that show up on the x-ray.
  • Endoscopy: A thin and light endoscope is passed down the throat into the esophagus to examine it.
    Sound waves are also used in this test that helps in providing more information on the extent of the tumor and its involvement in surrounding tissues.

Further, the spread of cancer can also be determined by performing some other tests that include positron emission tomography (PET) scan, laparoscopy, computed tomography (CT) scans, and thoracoscopy.

Esophageal Cancer Treatment in Iran

Treatment of Esophageal Cancer

There are several treatment options available for esophageal cancer that depends on some factors such as general health of the patient, stage of cancer, and the specific site of the primary tumor in the esophagus.

Following are some of the treatment options:


High-energy radiation beams are targeted on the cancerous tissue to destroy it.

Radiotherapy is usually used also to either chemotherapy or surgery.

Radiotherapy can be categorized into two different types for treating esophageal cancer that include the followings:

  • Internal Radiotherapy: A small radioactive implant is placed close to the cancerous tumor for removing and destroying it.
  • External Radiotherapy: This therapy makes use of a machine that is placed outside the body.
    This machine helps in directing the radiation on cancer to destroy it.

Esophageal Cancer Treatment in Iran


The surgical procedure for removing the entire or a part of the esophagus depends on the location and size of the tumor.

There are several surgical procedures for reaching the esophagus.

The surgical procedure can remove nearby soft tissues, a section of the esophagus and the lymph nodes.

The entire or a part of the stomach can also be removed.

The cancer is removed by making several incisions in the abdomen and chest.

In most cases, the stomach is pulled up and is then joined with the remaining portion of the esophagus.

Also, a part of the intestine is used for connecting the stomach with the esophagus remaining part.

A part of large intestine or small intestine may also be used.

A part of the intestine is used when the stomach is removed for joining it with the leftover part of the esophagus to the small intestine.

Esophageal Cancer Treatment in Iran


People with esophageal cancer can also be treated with the help of chemotherapy.

This therapy makes use of certain drugs that help in destroying the cancer cells.

The injection of these drugs is done into a vein (intravenous) that then travels throughout the different parts of the body.

Esophageal Cancer Treatment

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