Document Detail

Fetal topohistology of the mesocolon transversum with special reference to fusion with other mesenteries and fasciae.
MedLine Citation:
PMID:  19644969     Owner:  NLM     Status:  MEDLINE    
The developing mesocolon transversum was investigated using hematoxylin and eosin-stained semiserial sections derived from 17 human fetuses between 12 and 30 weeks of gestation. The mesocolon was attached to the mesoduodenum and greater omentum until 12 weeks. However, the fetal duodenal attachment appeared not to correspond to the right colic flexure in adults. The greater omentum and mesocolon were likely to be irregularly folded at the attachment site possibly because the developing transverse colon "ran into" and pushed up the greater omentum and pancreatic head. Lymphatic vessels invaded the indistinct fusion plane to destroy the primary configuration. Moreover, the mesocolon seemed to "seize" or take-over some parts of the splenic side of the greater omentum, but the thick gastric side containing the right gastroepiploic artery and vein remained along the greater curvature. Until 20 weeks, the left colic flexure was fixed to the pancreatic tail, and near the flexure the mesocolon also fused with the renal fascia. The left splenic end of the greater omentum was folded and fused together to form a thick ligament-like structure, i.e., the gastrocolic ligament. In addition, near the duodenojejunal junction, a peritoneal bridge was often seen containing the inferior mesenteric artery or vein. Although surgeons generally believe that the mesocolon can be gently detached from the greater omentum, the fusion plane in adults appears to be the result of secondary modification and simplification by vascular development.
Yeon Jun Jeong; Baik Hwan Cho; Yusuke Kinugasa; Chang Ho Song; Ichiro Hirai; Wataru Kimura; Mineko Fujimiya; Gen Murakami
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Clinical anatomy (New York, N.Y.)     Volume:  22     ISSN:  1098-2353     ISO Abbreviation:  -     Publication Date:  2009 Sep 
Date Detail:
Created Date:  2009-08-25     Completed Date:  2009-10-29     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8809128     Medline TA:  Clin Anat     Country:  United States    
Other Details:
Languages:  eng     Pagination:  716-29     Citation Subset:  IM    
Department of Surgery, Chonbuk National University Medical School, Jeonju, Korea.
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MeSH Terms
Abortion, Induced
Biological Markers / metabolism
Embryo, Mammalian / anatomy & histology*
Fetal Development*
Fluorescent Antibody Technique, Indirect
Gestational Age
Immunoenzyme Techniques
Lymphatic Vessels / anatomy & histology,  metabolism
Mesocolon / blood supply,  embryology*
Reg. No./Substance:
0/Biological Markers

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