What Is Stomach Cancer? The stomach is a sac-like organ that helps mixing food and gastric juices and delivers to duodenum. Development of stomach cancer Stomach cancers tend to develop slowly over many years. Before a true cancer develops, pre-cancerous changes often occur in the inner lining (mucosa) of the stomach. These early changes rarely cause symptoms, so they often go undetected. Can Stomach Cancer Be Found Early? Screening is testing for a disease, such as cancer, in people without symptoms. Stomach cancer screening in people at increased risk. Smoking causes lung cancer by damaging the cells that line the lungs. When you inhale cigarette smoke, which is full of cancer-causing substances (carcinogens), changes in the lung tissue begin almost immediately. Screening isn't usually recommended for people in families with hereditary diffuse gastric cancer (HDGC). Instead, doctors often recommend that people who have changes in the CDH1 gene that causes this syndrome consider having their stomach removed (total gastrectomy), because their risk of stomach cancer is very high. To know more about treatment book a consultation on 08048037730. Cancer specialist in Andheri | Cancer doctor in Andheri | Best cancer doctor in Andheri | Best oncologist in Andheri