Stomach cancer, also called gastric cancer, is a cancer that starts in the stomach. Smoking increases the risk of developing gastric cancer significantly, from 40% increased risk for current smokers to 82% increase for heavy smokers. Some studies show increased risk with alcohol consumption as well. Dietary factors are not proven causes,but some foods including smoked foods, salt and salt-rich foods, red meat, processed meat, pickled vegetables, and bracken are associated with a higher risk of stomach cancer.
Diagnosis is usually by biopsy done during endoscopy. This is then followed by medical imaging to determine if the disease has spread to other parts of the body. Surgery remains the only curative therapy for stomach cancer. The pathologic examination of the resected specimen shows incomplete resection or deep invasion by tumor, the patient would need a formal stomach resection.
Identified 612,500 cases of stomach cancer, which was more common in women (relative risk 1.71, 95% confidence interval 1.7-1.72)