Hiatus Hernia - Classification

Classification

There are two major kinds of hiatus hernia:

• The most common (95%) is the sliding hiatus hernia, where the gastroesophageal junction moves above the diaphragm together with some of the stomach.
• The second kind is rolling (or paraesophageal) hiatus hernia, when a part of the stomach herniates through the esophageal hiatus and lies beside the esophagus, without movement of the gastroesophageal junction. It accounts for the remaining 5% of hiatus hernias.

A third kind is also sometimes described, and is a combination of the first and second kinds.