Stomach - Cancer Science

What is Stomach Cancer?

Stomach cancer, also known as gastric cancer, is a type of cancer that begins in the stomach. The stomach is a muscular organ located in the upper abdomen and is part of the digestive system. It is responsible for breaking down food and digesting nutrients.

Types of Stomach Cancer

There are several types of stomach cancer. The most common type is adenocarcinoma, which starts in the glandular cells of the stomach lining. Other types include lymphoma, gastrointestinal stromal tumors (GISTs), and neuroendocrine tumors.

What Are the Risk Factors?

Several factors can increase the risk of developing stomach cancer. These include:
Helicobacter pylori infection
Chronic gastritis
Smoking
Family history of stomach cancer
Diet high in salty and smoked foods
Age (most cases occur in people over 60)

Symptoms to Watch For

Early-stage stomach cancer may not cause many symptoms. However, as the disease progresses, symptoms may include:
Indigestion or heartburn
Loss of appetite
Weight loss
Abdominal pain
Nausea and vomiting
Difficulty swallowing

How is Stomach Cancer Diagnosed?

Diagnosis typically involves a combination of methods. Endoscopy is often used to visually examine the stomach lining. Biopsies may be taken during this procedure to test for cancerous cells. Other diagnostic tools include CT scans, MRI, and PET scans.

Treatment Options

Treatment for stomach cancer depends on the stage and location of the cancer, as well as the patient's overall health. Options include:

Prevention and Early Detection

Preventive measures include maintaining a healthy diet rich in fruits and vegetables, avoiding smoking, and managing infections like Helicobacter pylori. Regular medical check-ups and being aware of the risk factors can also aid in early detection.

Prognosis and Survival Rates

The prognosis for stomach cancer varies depending on the stage at which it is diagnosed. Early-stage stomach cancer has a better prognosis compared to advanced stages. Survival rates also depend on the patient's age, overall health, and response to treatment.

Living with Stomach Cancer

Living with stomach cancer involves managing symptoms and side effects of treatment. Support from healthcare providers, family, and support groups can greatly improve the quality of life. Nutritional support and palliative care can also play significant roles in the overall treatment plan.



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