Neoplasms of the Stomach 1. Gastric cancer is the 5th most common malignancy worldwide and the 2nd leading cause of cancer death. Incidence rates have been declining globally but remain unchanged in some parts of Africa. 2. Risk factors include H. pylori infection, cigarette smoking, chronic atrophic gastritis, family history, and obesity. The majority of cases are adenocarcinoma. 3. Treatment involves surgical resection with chemotherapy or radiation for advanced cases. Prognosis depends on stage - 5 year survival is 75%, 50%, and 25% for stages 1, 2, and 3 respectively.