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[Morphology of the phrenoesophageal membrane]
Abstract:
Examinations were made of the phreno-esophageal membrane in 60 corpses of different age (from infant age up tu 72 a). Histological sections in frontal direction through the region of the esophageal hiatus were stained with haematoxylin and eosin and with Weigert's resorcinfuchsin and van Gieson's stain. Macro- and microscopic analyses showed that the phreno-esophageal membrane consisted of 2 layers: supradiaphragmatic and subdiaphragmatic ones. The supradiaphragmatic layer becomes thinner with age. The configuration of the membrane is characteristic of separate age groups. Histologically, the phreno-esophageal membrane is a fibrous structure built-up by 2 kinds of fibers of the connective tissue: collagen and elastic ones. A mutual quantitative relation of the fibers is different in separate age groups. In the paper, the authors stress the importance of the phreno-esophageal membrane in the gastro-esophageal closing mechanism and the necessity of reproducing its continuity during surgery of some sliding esophageal hiatus hernia.
Insights
The phreno-esophageal membrane
Area of Science:
- Anatomy
- Histology
- Gerontology
Context:
- The phreno-esophageal membrane is crucial for gastro-esophageal function.
- Age-related changes in this membrane are not fully understood.
- Understanding its structure is vital for surgical interventions.
Purpose:
- To investigate the age-related anatomical and histological changes in the phreno-esophageal membrane.
- To analyze the composition of collagen and elastic fibers within the membrane across different age groups.
- To evaluate the membrane's role in the gastro-esophageal closing mechanism.
Summary:
- Macro- and microscopic analyses of 60 human specimens revealed the phreno-esophageal membrane comprises two layers: supradiaphragmatic and subdiaphragmatic.
- The supradiaphragmatic layer thins with age, and its configuration varies across age groups.
- Histologically, the membrane is fibrous, composed of collagen and elastic fibers, with age-dependent quantitative variations.
Impact:
- The study highlights the phreno-esophageal membrane's significance in maintaining gastro-esophageal closure.
- Findings underscore the necessity of restoring membrane integrity during surgery for sliding esophageal hiatus hernia.
- Provides foundational data for understanding age-related structural changes impacting esophageal function.