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Health Dictionary

Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.

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Duodenal atresia classification

Introduction

Overview

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

Classification

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

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.

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