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What are the different stages of Gastric Cancer?

By  ,  National Institute of Health
Jan 10, 2013
4.8 / 5(4 Ratings)

After gastric cancer has been diagnosed, tests are done to find out if cancer cells have spread within the stomach or to other parts of the body.

The process used to find out if cancer has spread within the stomach or to other parts of the body is called staging. The information gathered from the staging process determines the stage of the disease. It is important to know the stage in order to plan treatment.

The following tests and procedures may be used in the staging process:



β-hCG (beta-human chorionic gonadotropin), CA-125, and CEA (carcinoembryonic antigen) assays

 

Tests that measure the levels of β-hCG, CA-125, and CEA in the blood. These substances are released into the bloodstream from both cancer cells and normal cells. When found in higher than normal amounts, they can be a sign of gastric cancer or other conditions.


Chest x-ray

 

An x-ray of the organs and bones inside the chest. An x-ray is a type of energy beam that can go through the body and onto film, making a picture of areas inside the body.


Endoscopic ultrasound (EUS)

 

A procedure in which an endoscope is inserted into the body, usually through the mouth or rectum. An endoscope is a thin, tube-like instrument with a light and a lens for viewing. A probe at the end of the endoscope is used to bounce high-energy sound waves (ultrasound) off internal tissues or organs and make echoes. The echoes form a picture of body tissues called a sonogram. This procedure is also called endosonography.


CT scan (CAT scan)

 

A procedure that makes a series of detailed pictures of areas inside the body, taken from different angles. The pictures are made by a computer linked to an x-ray machine. A dye may be injected into a vein or swallowed to help the organs or tissues show up more clearly. This procedure is also called computed tomography, computerized tomography, or computerized axial tomography.


Laparoscopy

 

A surgical procedure to look at the organs inside the abdomen to check for signs of disease. Small incisions (cuts) are made in the wall of the abdomen and a laparoscope (a thin, lighted tube) is inserted into one of the incisions. Other instruments may be inserted through the same or other incisions to perform procedures such as removing organs or taking tissue samples for biopsy.


PET scan (positron emission tomography scan)

 

A procedure to find malignant tumor cells in the body. A small amount of radioactive glucose (sugar) is injected into a vein. The PET scanner rotates around the body and makes a picture of where glucose is being used in the body. Malignant tumor cells show up brighter in the picture because they are more active and take up more glucose than normal cells do.

 

The following stages are used for gastric cancer:


Stage 0 (Carcinoma in Situ)


In stage 0, abnormal cells are found in the inside lining of the mucosal (innermost) layer of the stomach wall. These abnormal cells may become cancer and spread into nearby normal tissue. Stage 0 is also called carcinoma in situ.


Stage I


In stage I, cancer has formed. Stage I is divided into stage IA and stage IB, depending on where the cancer has spread.

  • Stage IA: Cancer has spread completely through the mucosal (innermost) layer of the stomach wall.
  • Stage IB: Cancer has spread:
  • completely through the mucosal (innermost) layer of the stomach wall and is found in up to ...
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