intestinal atresia


in·tes·ti·nal a·tre·si·a

an obliteration of the lumen of the small intestine, with the ileum involved in 50% of cases and the jejunum and duodenum next in frequency; most frequent cause of intestinal obstruction in the newborn; etiology may be related to a failure of recanalization during early development or to some impairment of blood supply during intrauterine life.

in·tes·ti·nal a·tre·si·a

(in-tes'ti-năl ă-trē'zē-ă) An obliteration of the lumen of the small intestine, with the ileum involved in 50% of cases and the jejunum and duodenum next in frequency; most frequent cause of intestinal obstruction in the newborn; etiology may be related to a failure of recanalization during early development or to some impairment of blood supply during intrauterine life.

intestinal atresia

Congenital closure of any part of the intestine. See also: atresia