esophageal hiatus


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Related to esophageal hiatus: Aortic hiatus, caval foramen, esophageal hiatus hernia

esophageal hiatus

[ə¦säf·ə¦jē·əl hī′ād·əs]
(anatomy)
The opening in the diaphragm for passage of the esophagus.
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Giant gastrointestinal stromal tumor, associated with esophageal hiatus hernia.
4) The esophageal hiatus is an elliptical opening in the muscular part of the diaphragm, situated at the level of the T10 vertebral body.
The "bird's beak" sign is a classic finding on esophagrams; it describes a dilated proximal esophagus with a smooth-tapered, distal esophagus at the level of the esophageal hiatus in the setting of achalasia.

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