CONGENITAL INTRINSIC OBSTRUCTION of the upper portions of the intestinal tract has been reported with increasing frequency over the years. The large majority of these lesions have been found in the duodenum and, in general, have been divided into two main types: (1) those with an internal septum or diaphragm occluding the lumen without break in the continuity of the bowel and (2) the complete separation of the bowel into blind segments which may be connected by a fibrous cord. Krieg,1 in reviewing 245 cases of duodenal atresia, found only four patients with congenital diaphragms. McGarity and Alein,2 in 1953, reported the first survival after surgery for jejunal diaphragm. Clatworthy,3 in 1957, reported his experience with 163 cases of neonatal obstruction seen from 1944 to 1956. Forty-eight of these patients had atresia or
stenosis and 25 had lesions in the duodenal-jejunal area. In none of these reports
Stahl WM. Unusual Pyloric Obstruction in an AdultCongenital Partial Diaphragm of Pylorus. JAMA. 1963;186(13):1173–1175. doi:10.1001/jama.1963.63710130017022c
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