From the Medical Clinic, Massachusetts General Hospital, and the Department of Medicine, Harvard Medical School.

A paraesophageal hiatal hernia occurs when a part of the stomach protrudes through the esophageal hiatus and lies beside the esophagus, without involvement of the gastroesophageal junction (Figure 3).

Background and Aim: Barrett's esophagus has been associated with the presence of hiatal hernia; however, to date no meta-analysis of the relationship has been performed. We aimed to conduct a ...

A hiatal hernia occurs when a small portion of the stomach pushes upward through the diaphragm, a sheetlike muscle that separates the lungs from the abdomen. Usually this doesn't cause any symptoms, ...

If you have excess belly fat, the pressure in your abdomen may cause your lower esophageal sphincter to be pushed upward, away from the support of your diaphragm. This condition, known as hiatal ...

Clip B marks the position of the squamocolumnar junction 0.4 cm distal to the hiatus and 3.5 cm distal to the anchor point on the vertebral body (V). Clip A is affixed to the esophageal mucosa 3.1 ...