To the Editor.—Favara et al1 present a fascinating theory regarding enteric duplications, ie "intrauterine ischemic infarction of the small bowel." The authors are careful to state that they "speculate" and that their theory may explain only the "rare instance" of enteric duplication. It seems likely that this theory will explain enteric duplications associated with intestinal atresia and/or a wedge-shaped defect in the mesentery. However, I fail to see how this theory will explain enteric duplications associated with (a) vertebral anomalies, or (b) tongue lesions containing intestinal1 or colonic2 mucosa, or (c) the presence of gastric mucosa in duplications of the rectum.3
In addition, it seems to me this theory does not explain duplications of the stomach. I have been impressed by the occasional finding of ectopic pancreatic tissue in the wall of gastric duplications (11% in the review by Bartels),3 and I wonder if
SZALAY G. ENTERIC DUPLICATIONS. Am J Dis Child. 1972;123(6):612. doi:10.1001/archpedi.1972.02110120136024
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