Year 4middle twist
A 72-year-old woman is undergoing evaluation for persistent postprandial fullness and intermittent epigastric discomfort. She has no history of reflux or dysphagia. A barium swallow reveals herniation of the gastric fundus into the thoracic cavity, while the gastroesophageal junction remains in its normal anatomical position.
(Diagram D)
Which of the following best describes this type of hiatus hernia?