What is the precaecocolic fascia?
Jennifer Crabbe1, John Shaw-Dunn1, Angus MacDonald2
1Anatomy Facility, School of Life Sciences, University of Glasgow, Glasgow, UK.
Clinical Anatomy (New York, N.Y.)
|September 18, 2021
Summary
The precaecocolic fascia, or Jackson's membrane, is a peritoneal fold found in 12 of 26 cadavers. This study found no link to bowel malformation or inflammation, suggesting "membrane" is a better term.
Area of Science:
- Anatomy
- Surgical Anatomy
- Embryology
Background:
- The precaecocolic fascia, also known as Jackson's membrane, is a peritoneal fold.
- Its origin and association with abdominal pain have been debated since its discovery in 1913.
Purpose of the Study:
- To investigate the frequency, form, and structure of the precaecocolic fascia.
- To determine if it is associated with bowel malformation or previous inflammation.
Main Methods:
- Dissection of 26 cadavers to identify the precaecocolic fascia.
- Histological examination of its structure and latex injections to trace arteries.
- Assessment for colonic malrotation and signs of inflammation.
Main Results:
- Precaecocolic fascia-like membranes were found in 12 of 26 abdomens, with variable forms and sizes.
- Histology revealed a peritoneal fold with a thickened fibrous lamina and associated arteries.
- No significant association was found between the fascia and colonic malrotation or markers of inflammation.
Conclusions:
- The term "membrane" may be more appropriate than "fascia" for this structure.
- It is likely a peritoneal fold of uncertain origin, not post-inflammatory.
- The precaecocolic membrane may influence colonic mobility and complicate surgical procedures.
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