Definition: Congenital obliteration of the lumen of the intestine, with the ILEUM involved in 50% of the cases and the JEJUNUM and DUODENUM following in frequency. It is the most frequent cause of INTESTINAL OBSTRUCTION in NEWBORNS. (From Stedman, 25th ed)
coord IM with specific intestine /abnorm except for duodenum: index duodenal atresia as DUODENAL OBSTRUCTION /congen (IM) + INTESTINAL ATRESIA (IM)