pediatrics
Jejunoileal Atresia
Classification of Jejunoileal Atresia
There are 5 major types of jejunoileal atresia: Type I consists of a membrane completely occluding the lumen with the intestine intact. Type II is a gap in the intestine with a fibrous cord between the proximal and distal segments of intestine. Type IIIA is a mesenteric gap without any connection between the segments. Type IIIB is jejunal atresia with absence of the distal superior mesenteric artery; the distal small bowel is coiled like an apple peel, and the gut is short. Type IV consists of multiple atretic segments (resembling a string of sausages). 