Stomach (Gastric) Cancer
Stomach cancer develops in the lining of the stomach. Its incidence varies significantly by geographic region and is associated with H. pylori infection and dietary factors.
Understanding Stomach (Gastric) Cancer
Gastric cancer most commonly arises from the glandular cells of the stomach lining (adenocarcinoma). Other types include lymphoma, gastrointestinal stromal tumors (GIST), and carcinoid tumors. Incidence is higher in East Asia, Eastern Europe, and parts of South America.
Common Symptoms
- Persistent indigestion or heartburn
- Difficulty swallowing
- Feeling full after eating small amounts
- Nausea and vomiting
- Unexplained weight loss
- Abdominal pain or swelling
How It Is Diagnosed
Diagnosis involves upper endoscopy with biopsy. Staging uses CT, endoscopic ultrasound, and sometimes diagnostic laparoscopy. HER2 and PD-L1 testing guide treatment decisions.
Frequently Asked Questions
Common questions about Stomach (Gastric) Cancer
Can H. pylori treatment prevent stomach cancer?
Eradicating H. pylori infection reduces the risk of developing gastric cancer, particularly in individuals without precancerous changes. It is recommended for those with confirmed infection.
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