Atresia or stenosis of the intestinal tract is estimated to be present in about 1 of 20,000 newborn children. Hunt1 was able to collect from the literature about 500 cases of congenital obstruction between the pylorus and the rectum. These reports, however, also included all cases of obstruction due to such abnormalities as developmental bands or membranous outgrowths, tumors of the intestinal wall, mucus plugs volvulus and intussusception. Ladd2 has reported the largest single series, 40 cases from the Children's Hospital in Boston. According to Glover and Hamann3 these abnormalities are due (1) to errors of rotation and failure of fusion and (2) to defects in intrinsic development producing atresia, stenosis or actual interruption of continuity. Atresia occurs with greatest frequency in the esophagus, next most frequently in the distal half of the duodenum and the upper part of the jejunum and rarely in the terminal portion
MOSES E. ATRESIA OF THE TERMINAL PORTION OF THE ILEUM, WITH PERFORATION, IN A PREMATURE INFANT. Am J Dis Child. 1941;62(1):141–143. doi:10.1001/archpedi.1941.02000130152013
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