Stomach Cancer - Causes, Symptoms, Diagnosis, treatment and analysis

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Stomach cancer is tasteless throughout the world and affects all races, it is more tasteless in men than women, and has its peak age range between 40 and 60 years old. Mortality is higher in Japan and Chile, presumably because of the separate diets in those countries where they are less dependent on red meat.

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Over the last 25 years the incidence of this type of cancer in the western world has decreased by 50% and the resulting death rate is less than a third of what it used to be but in less developed countries it is still a major cause of death, probably because in these countries by the time the disease is diagnosed (usually by means of a Barium meal) the stomach cancer is at a very developed stage.

Types Of Stomach Cancer

There are several separate types of stomach cancer, some of which are very rare. The most tasteless types start in the glandular cells of the stomach lining (adenocarcinomas), this is where stomach acid and digestive enzymes are made, and where most cancers start. When the tumor becomes more advanced, it can trip straight through the bloodstream and spread to organs such as the liver, lungs, and bones. Cancers that start in the lymphatic tissue (lymphoma), in the stomach's muscular tissue (sarcoma) or in the tissues that keep the organs of the digestive principles (gastrointestinal stromal tumors) are less tasteless and are treated in separate ways.

Signs And Symptoms
Early clues to stomach cancer are chronic dyspepsia and epigastric discomfort, followed in later stages by weight loss, anorexia, a feeling of fullness after eating, anemia and fatigue. Blood in the stools may also be present and if the Cancer is in the Cardia (top) vomiting may occur.

Causation
The exact cause is unknown although the presence of the Helicopter pylori bacterium seems to be a major factor. Predisposing factors consist of environmental influences such as smoking and high alcohol intake. Because stomach cancer is more tasteless among those with a house history and with citizen with type A blood, genetic factors are also implicated. Dietary factors, particularly methods of food preservation such as pickling, smoking or salting also have an work on on the prevalence.

Diagnosis
Stomach cancer is diagnosed straight through an exam that may consist of an upper gastrointestinal (Gi) series; endoscopy or gastroscopy where a thin flexible tube is passed down the throat so the physician can see into the stomach, esophagus and upper part of the bowel Barium meals and Barium swallows. Because the cancer can spread to the liver, the pancreas, and other organs near the stomach as well as to the lungs, the physician may order a Ct scan, a Pet scan, an endoscopic ultrasound exam, or other tests to check these areas.

The cancer can spread (metastasize) to the esophagus or the small intestine, and can extend straight through the stomach wall to colse to lymph nodes and organs. Metastasis occurs in 80-90% of individuals with stomach tumors, with a five year survival rate of 75% in those diagnosed in early stages and less than 30% of those diagnosed in late stages.

Treatment
Although the cancer may be treated with surgery, radiation therapy, or chemotherapy, in many cases surgery is the medicine of choice. Even in patients whose disease is not considered surgically curable, resection offers a palliative supervene and improves inherent benefits from chemotherapy.

The nature and extent of the cancer determines what kind of surgery is most appropriate. tasteless surgical procedures include, partial and total dismissal of the stomach.
Antiemetics can operate nausea, which increases as the cancer advances. In the more developed stages, sedatives and tranquilizers may be significant to operate anxiety. Narcotics are commonly significant to operate sever and unremitting pain.
In some cases of developed stomach cancer, a laser beam directed straight through an endoscope can vaporize most of the tumor and relax obstruction without an operation.

Prognosis
Stomach cancer is curable if detected early, but most citizen don't seek curative help until the disease is quite advanced, perhaps because symptoms occur late and are often vague and non-specific. Eating fresh fruits and vegetables that consist of antioxidant vitamins (such as A and C) appears to lower the risk of stomach cancer. The rate of cancer is about doubled in smokers so the cessation of smoking is essential.

In the United States and most of the Western world, the 5-year survival rate ranges from 5-15%. In Japan, where stomach cancer often is diagnosed early, the 5 year survival rate is about 50%. Five year survival rates for more developed stomach cancers range from, colse to 20% for those with regional disease to approximately nil for those with distant metastases.

Treatment for metastatic stomach cancer can relax symptoms and sometimes prolong survival, but long remissions are not common. The survival of inoperable stomach cancer is usually only a few months if untreated. With chemotherapy the mean survival is about 12 months. If cancer is found before it has spread, the five-year relative survival rate is about 61%.

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