Learning objectives
To discuss basic topics of embryology and anatomical contemporary classification of the mesentery.
To expose differences between the traditional and the new proposal of mesenteric anatomy.
To illustrate main patterns of mesenteric pathologies,
which can be divided into primary or secondary diseases.
To provide tips for the correct diagnostic investigation of such pathologies and exclusion of the main differential diagnoses.
Basic topics of embryology and anatomical contemporary classification of the mesentery and the main differences between the traditional and the new proposal of mesenteric anatomy...
Background
Why nominate the mesentery as an organ?
The definition of an organ is vague,
so that listing and classifying human organs is problematic.
In one of the most accepted definitions,
an organ is defined as an independent part of the body that carries a special function.
After the new anatomical and functional understanding of the mesentery,
it was then suggested that it should be redesignated as an organ itself.
The criteria observed for this designation were in short,
its size,
its continuity and distinct functions....
Findings and procedure details
Now that we have reviewed the key concepts about the anatomy and radiologic anatomy of the mesentery,
we can approach the mesentery pathologies by dividing them into primary and secondary.
Primary
Internal Herniation
Malrotation
Volvulus
Vascular - Mesenteric bleeding/hematoma
Vascular - Mesenteric ischemia
Mesenteric cyst
Hemangiomatosis
Crohn’s Disease
Primary Neoplasms
Tumors with primary manifestation in the peritoneum in the absence of a visceral site of origin.
They arise from mesothelial cells,
submesothelial mesenchymal cells,
and uncommitted stem cells .
Because the origins of some primary...
Conclusion
The question of the mesentery being designated as an organ has not yet been widely defined or accepted by the scientific community.
This is an anatomical concept and the criteria presented may not be sufficient for this designation.
Organ or not,
the mesentery has gained space as a noble,
continuous structure with specific functions and also being the origin and spread of specific diseases.
Thus,
the mesentery must have a new approach by the scientific community in the future.
Currently,
the new concepts regarding the...
Personal information
Contact details:
Hanna R.
F.
Dalla Pria
Department of Imaging,
Universidade Federal de São Paulo
Rua Napoleão de Barros,
800 - Vila Clementino
CEP 04024-002 - São Paulo/SP,
Brazil.
Email:
[email protected]
Author Information
Hanna R.
F.
Dalla Pria (Department of Imaging,
Universidade Federal de São Paulo,
São Paulo,
Brazil).
Fernanda Velloni (Department of Imaging,
Universidade Federal de São Paulo,
São Paulo,
Brazil;Diagnósticos da América S.A.
DASA.
São Paulo,
SP,
Brazil).
Rafael A.
Santiago(Department of Imaging,
Universidade Federal de São Paulo,
São Paulo,
Brazil;Diagnósticos da América...
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