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Phrenoesophageal ligament re-visited.

H Kwok¹, Y Marriz, S Al-Ali

¹Department of Anatomy with Radiology, Faculty of Medicine and Health Science, University of Auckland, New Zealand.

Clinical Anatomy (New York, N.Y.)

|May 26, 1999

Summary

The phrenoesophageal ligament, connecting the esophagus and diaphragm, is a distinct anatomical structure. Its collagen and elastic composition anchors the lower esophagus, crucial for gastroesophageal competence.

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Area of Science:

Anatomy
Histology
Gastroenterology

Background:

The phrenoesophageal ligament's anatomy is often overlooked in medical education.
Understanding this ligament is key to comprehending esophageal anchoring and function.

Purpose of the Study:

To investigate the macroscopic and microscopic structure of the phrenoesophageal ligament.
To clarify its anatomical origins and insertion points.

Main Methods:

Macroscopic examination of the ligament's structure.
Microscopic and histological analysis of its composition and insertion.

Main Results:

The phrenoesophageal ligament is a distinct structure between the esophagus and esophageal hiatus.
It originates from the endothoracic and transversalis fascia, rich in collagen and elastic fibers.
The ligament features two leaves inserting deeply into the esophageal wall.

Conclusions:

The phrenoesophageal ligament plays a vital role in anchoring the lower esophagus.
It is essential for maintaining gastroesophageal competence and preventing reflux.

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