Intestinal Atresia

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-

  1. Type I- Simple stenosis. Mucosal atresia with intact muscularis.
  2. Type II- Proximal & distal bowel are connected by fibrous band which has no lumen (atretic segment) with normal mesentry.
  3. 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-

  1. Type I- Simple stenosis. Mucosal atresia with intact muscularis.
  2. Type II- Proximal & distal bowel are connected by fibrous band which has no lumen (atretic segment) with normal mesentry.
  3. 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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