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Gastric outlet obstruction (often abbreviated as GOO) is a medical condition where there is an obstruction at the level of the pylorus, which is the outlet of the stomach. Individuals with gastric outlet obstruction will often have recurrent vomiting of food that has accumulated in the stomach, but which cannot pass into the small intestine due to the obstruction. The stomach often dilates to accommodate food intake and secretions. Causes of gastric outlet obstruction include both benign causes (such as peptic ulcer disease affecting the area around the pylorus), as well as malignant causes, such as gastric cancer. Causation related to ulcers may involve severe pain which the patient may interpret as a heart condition/attack.〔http://www.webmd.com/digestive-disorders/digestive-diseases-peptic-ulcer-disease〕 Treatment of the condition depends upon the underlying cause; it can involve antibiotic treatment when H. Pylori is related to an ulcer,〔http://www.webmd.com/digestive-disorders/digestive-diseases-peptic-ulcer-disease〕 endoscopic therapies (such as dilation of the obstruction with balloons or the placement of self expandable metallic stents), other medical therapies, or surgery to resolve the obstruction. ==Causes== The causes are divided into benign or malignant. * Benign * * Peptic ulcer disease * * Infections, such as tuberculosis; and infiltrative diseases, such as amyloidosis. * * A rare cause of gastric outlet obstruction is blockage with a gallstone, also termed ''Bouveret's syndrome''. * * In children congenital pyloric stenosis / congenital hypertrophic pyloric stenosis may be a cause. * * A pancreatic pseudocyst can cause gastric compression. * * Pyloric mucosal diaphragm could be a rare cause. * Malignant * * Tumours of the stomach, including adenocarcinoma (and its linitis plastica variant), lymphoma, and gastrointestinal stromal tumours 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Gastric outlet obstruction」の詳細全文を読む スポンサード リンク
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