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 may be classified into four subtypes: Type I, Type II, Type III, and Type IV.

Classification

• Intestinal atresia may be classified into several subtypes based on the location of the intestinal atresia:
  • Duodenum
  • Jejunum
    • Type I
    • Type II
    • Type III
    • Type IV
  • Ileum

Intestinal atresia according to the origin of the abnormality

Duodenum

Jejunum

Ileum

• • • •

•Type I •Type II Type III Type IV

•