Abstract • Preduodenal or precholedochal veins are rare developmental anomalies of considerable surgical importance. Injury to these structures because of failure to recognize them during operations for unrelated diseases may result in thrombosis or hemorrhage. We recently encountered this anomaly twice, once in a newborn infant with duodenal obstruction and once in a 54-year-old woman undergoing cholecystectomy. The preduodenal vein was not the primary cause of obstruction in the infant, but injury to the previously unrecognized precholedochal vein in the woman resulted in a considerable loss of blood. Besides describing and illustrating these two cases, we also discuss the anatomy and the embryology of these structures and briefly review the patterns of 44 previously reported cases that we found. (Arch Surg 113:311-313, 1978) References 1. Markes C: Surgical implications of portal venous system malformation . Ann R Coll Surg Engl 55:300-305, 1974. 2. Braun P, Collin PO, Ducharme JC: Preduodenal portal vein: A significant entity. Report of two cases and a review of the literature . Can J Surg 17:316-322, 1974. 3. Brook W, Gardner M: Anteroposition of the portal vein and spontaneous passage of gall stones . Br J Surg 59:737-739, 1972.Crossref 4. Edelson ZC: Preduodenal portal vein . Am J Surg 127:599-600, 1974.Crossref 5. Lilly JR, Chondra RS: Surgical hazards of co-existing anomalies in biliary atresia . Surg Gynecol Obstet 139:49-54, 1974. 6. Knight HP: An anomalous portal vein with its surgical dangers . Ann Surg 74:697, 1921.Crossref 7. Fraser J, Brown AK: A clinical syndrome associated with a rare anomaly of the vena portae system . Surg Gynecol Obstet 78:520, 1944.
Archives of Surgery – American Medical Association
Published: Mar 1, 1978