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<unk>  is blockage with a gallstone, also termed "Bouveret syndrome" or "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
Gastric outlet obstruction
Esophageal food bolus obstruction
Esophagogastric dissociation
Esophagogastric junction outflow obstruction
Gastric volvulus
Inspissation
Exocrine pancreatic insufficiency
Sphincter of Oddi dysfunction