Source:http://linkedlifedata.com/resource/umls/id/C3489393
MSH: STOMACH herniation located at or near the diaphragmatic opening for the ESOPHAGUS, esophageal hiatus. When the ESOPHAGOGASTRIC JUNCTION is above the DIAPHRAGM, it is called a SLIDING HIATAL HERNIA. When the ESOPHAGOGASTRIC JUNCTION is below the DIAPHRAGM, it is called a PARAESOPHAGEAL HIATAL HERNIA.,MEDLINEPLUS: <p>A hiatal hernia is a condition in which the upper part of the stomach bulges through an opening in the diaphragm. The diaphragm is the muscle wall that separates the stomach from the chest. The diaphragm helps keep acid from coming up into the esophagus. When you have a hiatal hernia, it's easier for the acid to come up. The leaking of acid from the stomach into the esophagus is called <a href='http://www.nlm.nih.gov/medlineplus/gerd.html'>gastroesophageal reflux</a> (GERD). GERD may cause symptoms such as </p><ul><li> Heartburn </li><li> Problems swallowing</li><li> A dry cough</li><li> Bad breath</li></ul><p>Hiatal hernias are common, especially in people over age 50. If you have symptoms, e