Unusual Pyloric Obstruction in an Adult

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Abstract
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,1in reviewing 245 cases of duodenal atresia, found only four patients with congenital diaphragms. McGarity and Alein,2in 1953, reported the first survival after surgery for jejunal diaphragm. Clatworthy,3in 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

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