Stomach cancer

http://youtu.be/2CcUmFaaPTg Stomach cancer or gastric cancer, is when cancer develops from the lining of the stomach. Early symptoms may include: heartburn, upper abdominal pain, nausea, and loss of appetite. Later symptoms may include: weight loss, yellow skin, vomiting, difficulty swallowing, and blood in the stool among others. The cancer may spread from the stomach to other parts of the body, particularly the liver, lungs, bones, lining of the abdomen and lymph nodes. The most common cause is infection by the bacteria Helicobacter pylori which accounts for more than 60% of cases. Certain type of H. pylori have greater risks than others. Other common causes include eating pickled vegetables, and smoking. About 10% of cases run in families and between 1% and 3% of cases are due to genetic syndromes inherited from a person's parents such as hereditary diffuse gastric cancer. Most cases of stomach cancers are gastric carcinomas. This type can be divided into a number of subtypes. Lymphomas and mesenchymal tumors may also develop within the stomach. Most of the time, stomach cancer develops through a number of stages over a number of years. Diagnosis is usually by biopsy done during endoscopy. This is than followed by medical imaging to determine if the disease has spread to other parts of the body. At least Japan and South Korea, two countries that have high rates of disease, screen for stomach cancer. This video is targeted to blind users. Attribution: Article text available under CC-BY-SA Creative Commons image source in video