INTESTINAL ATRESIA
INTESTINAL ATRESIA
- Intestinal atresia is a congenital absence of lumen mostly affecting the ileum or duodenum.
- Most commonly affects jejunum or ileum equally.
- It is associated with maternal hydroaminos or malrotation of the gut.
- Proximal bowel is dilated & distal bowel is collapsed.
- Microcolon.
Classification-
- Type I- Simple stenosis. Mucosal atresia with intact muscularis.
- Type II- Proximal & distal bowel are connected by fibrous band which has no lumen (atretic segment) with normal mesentry.
- Type III – It is of 2 types-
- IIIa- atresia with V- shaped loss of mesentry in between.
- IIIb- completed jejuna atresia with coiled ileum & called as Christmas tress deformity or apple peal.
- Type IV- Multiple atresia with a string of sausage or string of beads appearance.
Treatment-
- Resection, anastomosis.
Exam Important
- Intestinal atresia is a congenital absence of lumen mostly affecting the ileum or duodenum.
- Most commonly affects jejunum or ileum.
- It is associated with maternal hydroaminos or malrotation of the gut.
Classification-
- Type I- Simple stenosis. Mucosal atresia with intact muscularis.
- Type II- Proximal & distal bowel are connected by fibrous band which has no lumen (atretic segment) with normal mesentry.
- Type III – It is of 2 types-
- IIIa- atresia with V- shaped loss of mesentry in between.
- IIIb- completed jejuna atresia with coiled ileum & called as Christmas tress deformity or apple peal.
- Type IV- Multiple atresia with a string of sausage or string of beads appearance.
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