What is Gastric Cancer? A Patient's Guide to Stomach Cancer

Gastric cancer, also known as stomach cancer, occurs when malignant (cancerous) cells form in the lining of the stomach. This condition can affect digestion and overall health, making it important to understand its causes, symptoms, and treatment options.

What is Gastric Cancer?

Gastric cancer is a disease that starts in the stomach, an organ in the upper abdomen that helps digest food. It often begins in the mucosa, the innermost layer of the stomach, and can spread to other parts of the body if not detected early. Stomach cancer is more common in older adults and is more prevalent in certain parts of the world, such as East Asia.

Causes and Risk Factors

The exact cause of gastric cancer is not fully understood, but several risk factors have been identified. These include:

• Helicobacter pylori infection: This bacterial infection is a major risk factor for stomach cancer.
• Diet: A diet high in salty, smoked, or preserved foods can increase risk.
• Smoking: Tobacco use is linked to a higher risk of developing stomach cancer.
• Family history: Having a family member with gastric cancer can increase your risk.
• Chronic gastritis: Long-term inflammation of the stomach lining can lead to cancer.

Symptoms of Gastric Cancer

Early-stage gastric cancer might not cause noticeable symptoms, which is why it is often diagnosed at a later stage. Symptoms can include:

• Indigestion or heartburn
• Nausea and vomiting
• Loss of appetite
• Unexplained weight loss
• Abdominal pain or discomfort
• Feeling full after eating small amounts If you experience any of these symptoms persistently, it's important to consult a healthcare provider for further evaluation.

Diagnosis and Tests

Diagnosing gastric cancer typically involves several tests. These may include:

• Endoscopy: A procedure where a flexible tube with a camera is inserted into the stomach to look for abnormalities.
• Biopsy: A sample of stomach tissue is taken during an endoscopy to check for cancer cells.
• Imaging tests: CT scans or X-rays may be used to see if cancer has spread.
• Blood tests: These can help assess overall health and identify markers like carcinoembryonic antigen (CEA) that might indicate cancer.

Treatment Options

Treatment for gastric cancer depends on the stage of the cancer and overall health. Options include:

• Surgery: Removing part or all of the stomach is often necessary to treat gastric cancer.
• Chemotherapy: Uses drugs to kill cancer cells or stop them from growing.
• Radiation therapy: Uses high-energy rays to target and kill cancer cells.
• Targeted therapy: Involves drugs that specifically target cancer cell mechanisms.

Frequently Asked Questions

What is the survival rate for gastric cancer? Survival rates vary depending on the stage at diagnosis. Early detection generally leads to better outcomes.

Can lifestyle changes reduce the risk of gastric cancer? Yes, reducing salt intake, quitting smoking, and eating a balanced diet can help lower risk.

Is gastric cancer hereditary? While having a family history can increase risk, most cases are not directly inherited.

What are the stages of gastric cancer? Gastric cancer stages range from 0 (early) to IV (advanced), based on how far the cancer has spread.

Can gastric cancer be cured? Treatment can be effective, especially if the cancer is detected early, but it depends on various factors.

When to See a Doctor

You should see a doctor if you experience persistent symptoms such as unexplained weight loss, ongoing stomach pain, or difficulty swallowing. Early diagnosis can improve treatment outcomes significantly.

Please remember, this information is for educational purposes only and any medical decisions should be made in consultation with your healthcare provider.