Jejunoileal atresias and stenoses are major causes of neonatal intestinal obstruction. Atresia refers to a congenital obstruction with complete occlusion of the intestinal lumen. It accounts for 95% of obstructions. Four types of jejunoileal atresias are described. They can range from having a small area of blockage or web to missing large sections of the intestines.
Intestinal atresia is one of the most frequent causes of bowel obstruction in the newborn. The ileal atresia is more common than jejunal atresia, and multiple foci are more common than isolated atresia. The most accepted theory regarding the etiology of jejunoileal atresia is that of an intrauterine vascular accident resulting in necrosis of the affected segment.
Stenosis, on the other hand, refers to a partial occlusion with incomplete obstruction and accounts for the remaining 5% of cases. A stenosis has an intact mesentery and is a localised narrowing of the bowel. No loss of continuity of the lumen exists.
Inclusions
Congenital absence of small intestine
Congenital stenosis of small intestine
Also indexed as
Apple-peel deformityApple-peel syndromeAtresia of ileum type IAtresia of ileum type IIAtresia of ileum type IIIaAtresia of jejunum type IAtresia of jejunum type IIAtresia of jejunum type IIIaAtresia of small intestineChristmas tree syndromeChristmas-tree deformityCongenital absence of ileumCongenital absence of jejunumCongenital absence of small intestineCongenital absence, atresia or stenosis of ileumCongenital absence, atresia or stenosis of jejunumCongenital atresia of ileumCongenital atresia of jejunumCongenital imperforate of jejunumCongenital stenosis of ileumCongenital stenosis of jejunumCongenital stenosis of small intestineCongenital stricture of ileumCongenital stricture of jejunumImperforate jejunumMultiple atresias of jejunum type IVMultiple-level intestinal atresiaSmall intestine atresia type IVatresia of ileum NOSatresia of jejunumcongenital ileum obstructioncongenital jejunal stenosiscongenital small intestinal stricture NOSileal atresiaileum agenesisileum atresiajejunal agenesisjejunal atresiajejunal imperforatejejunum agenesisjejunum atresiastenosis of jejunum
Nearby in Structural developmental anomalies of small intestine