Duodenal atresia classification
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Hamid Qazi, MD, BSc [2]
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 may be classified into several subtypes based on the location of the intestinal atresia:[1][2]
- Duodenum
- Type I
- Involves complete mucosal membrane or diaphragm
- Muscularis and serosa remaining intact
- No discontinuation of the bowel
- Type II
- Type III
- Type IV
- Several absent areas of bowel
- String of sausage appearance
- Type I
- Jejunum
- Ileum
- Duodenum
| Intestinal atresia according to the origin of the abnormality | |||||||||||||||||||||||||||||||||||||||
| Duodenum | Jejunum | Ileum | |||||||||||||||||||||||||||||||||||||
| •Type I •Type II •Type III •Type IV | |||||||||||||||||||||||||||||||||||||||
References
References
- ↑ 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.
- ↑ 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.
Looking for the patient version?
© 2026 MyEClinic – IFTM Institut für Telematik in der Medizin GmbH