Gray and Skandalakis reported a classification of duodenal atresia. This usually presents in neonates or young infants.
Type
Key Feature
Comment
Type I
diaphragm or membrane formed between mucosa and submucosa; less often the lumen may show a plug
most common form; may have delayed presentation
Type II
2 segments of duodenum (proximal in continuity with stomach; distal in continuity with jejunum) end blindly but are connected by a fibrous cord
mesentery to the 2 segments continuous
Type III
as for Type II except no fibrous cord between the 2 segments
mesentery to the 2 segments separated/interrupted
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Specialty: Gastroenterology
