what is paraesophageal hernias
Type II hiatal hernia is also called a paraesophageal hiatal hernia, in which the stomach herniates through the diaphragmatic esophageal hiatus alongside the esophagus. In the type II or pure paraesophageal hernia, the gastroesophageal junction remains below the hiatus and the stomach rotates in front of the esophagus and herniates into the chest (see image below).