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Patent Vitello-Intestinal Duct With Ileal Prolapse

Arch Surg. 1965;91(3):456-460. doi:10.1001/archsurg.1965.01320150086013.
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DURING the third week of embryonic life there is a communication between the intraembryonic gut and the yolk-sac. As development proceeds this communication narrows into a tube, the vitello-intestinal duct. With establishment of placental nutrition, this duct usually becomes obliterated by the end of the seventh week. Persistence of various portions gives rise to a group of rather interesting congenital anomalies. The commonest of these is Meckel's diverticulum which is due to persistence of the enteric portion of the vitelline duct. Meckel's diverticulum occurs with a frequency which has been variously estimated at 1.3% from studies based on autopsies,1 or 3.1% from studies based on laparotomies.2

Complete patency of the vitello-intestinal duct is rare. Kittle et al3 observed it in only two out of 30,000 births (about 0.0067%) at Chicago Lying-In Hospital over the period 1937-1947; while Brown and Glover4 found it in two out of


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