Duodenal atresia classification

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Hamid Qazi, MD, BSc [2]

Overview

Intestinal atresia, including duodenal atresia, may be classified into four subtypes: Type I, Type II, Type III, and Type IV. Type I is the most common subtype which involves the complete mucosal membrane, with muscularis and serosa remaining intact.

Classification

 
 
 
 
 
 
 
 
Intestinal atresia according
to the origin of the abnormality
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Duodenum
 
 
 
 
Jejunum
 
 
 
 
Ileum
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
•Type I
•Type II
•Type III
•Type IV
 
 
 
 
 
 
 

References

  1. Morris, Grant; Kennedy, Alfred; Cochran, William (2016). "Small Bowel Congenital Anomalies: a Review and Update". Current Gastroenterology Reports. 18 (4). doi:10.1007/s11894-016-0490-4. ISSN 1522-8037.
  2. Kao KJ, Fleischer R, Bradford WD, Woodard BH (1983). "Multiple congenital septal atresias of the intestine: histomorphologic and pathogenetic implications". Pediatr Pathol. 1 (4): 443–8. PMID 6687294.

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