What is gastric cancers ?

Benign tumors in the stomach does not seem to cause symptoms or medical problems. But sometimes, some bleeding or develop into cancer. Approximately 99% of gastric cancers are adenocarcinomas. Another gastric cancer is leiomiosarkoma (smooth muscle cancer) and lymphoma.

Stomach cancer is more common in the elderly. Less than 25% of certain cancers occur in people under the age of 50 years. In China, Japan, Chile and Iceland, gastric cancer is found very often. In the U.S., more common in poor, black people and people living in the north. And No. 7 is the leading cause of death, which occurred at about 8 of every 100,000 people.


CAUSE
Stomach cancer often begins at a site where inflamed stomach lining. But many experts believe that inflammation is a result of gastric cancer, not as a cause of cancer. Some experts argue, gastric ulcers can cause cancer. But most people with ulcers and gastric cancer, the possibility of cancer was not detected before the ulcer formed.

Helicobacter pylori, bacteria that play an important role in duodenal ulcer, could also play a role in the occurrence of gastric cancer.

Gastric polyp, a benign growth of the round, which grows into the cavity of the stomach, allegedly a sign of cancer and therefore it is raised polyp. Cancer may occur in conjunction with certain types of polyps, the polyps larger than 1.8 cm or polyps of more than 1.

Certain dietary factors expected to play a role in the growth of gastric cancer.
These factors include:
- High salt intake
- A high carbohydrate intake
- Intake of preservatives (nitrates) are high
- Intake of green vegetables and fruit are lacking.
But none of those factors that have been proven to cause cancer.


SYMPTOMS
In early-stage gastric cancer, its symptoms are vague and often ignored. If symptoms develop, can help determine where the location of gastric cancer. For example, a feeling of fullness or discomfort after eating could indicate the presence of cancer in the bottom of the hull. Weight loss or fatigue is usually caused by eating difficulties or an inability to absorb some vitamins and minerals.

Anemia can be caused by a gradual bleeding that does not cause other symptoms. Sometimes patients may also experience a lot of vomiting blood (hematemesis) or pass black stools (melena). When gastric cancer is growing, there may be palpable mass in the abdominal wall.

In the early stages, a small gastric tumors can spread (metastasize) to distant sites. The spread of the tumor can cause an enlarged liver, jaundice (jaundice), fluid collection in the abdomen (ascites) and skin nodules are malignant. The spread of cancer can also cause bone loss, resulting in broken bones.


Diagnosis
Symptoms of stomach cancer can be confused with peptic ulcers. If symptoms do not disappear after the patient taking medication for ulcers or when symptoms include weight loss, then the suspicion of a gastric cancer. X-ray examination using barium to mark a change in the surface of the stomach is often done, but rarely can find a small and gastric cancer in early stages.

Endoscopy is a diagnostic procedure that is best because:
- Allows doctors to see the hull directly
- Can look for the existence of Helicobacter pylori, bacteria that play a role in gastric cancer
- Can take a sample of tissue for microscopic examination.


TREATMENT
Benign gastric polyps removed using endoscopy. When carcinoma is found in the stomach, surgery is usually done to try to cure him. Most or all of the stomach and nearby lymph nodes removed participate.

When the carcinoma has spread outside of the hull, the goal of treatment is to reduce symptoms and prolong life expectancy. Chemotherapy and radiation therapy can relieve symptoms. The results of chemotherapy and radiation therapy in lymphoma better than carcinoma. Perhaps the patient will survive longer even make a full recovery.