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Gastric outlet obstruction

outlet obstruction (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 due to the obstruction. The stomach often dilates to accommodate food intake and secretions. Causes of gastric outlet obstruction include both causes, such as peptic ulcer disease affecting the area around the pylorus, and causes, such as gastric cancer.

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Plain-language summary adapted from Wikipedia. Not medical advice.