Stomach Cancer (Gastric) What is stomach cancer? Stomach cancer is a malignant tumor that starts in the cells of the stomach. The word “malignant” means that the tumor is cancerous and can spread (metastasize) to other parts of the body. The stomach is part of the digestive system. It is a sac-like muscular organ located … Continue reading Stomach Cancer (Gastric) | Symptoms, Stages, Types, Diagnoses, Chances of Surviving, Treatments