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AMA Arch Surg. 1950;61(5):957-974. doi:10.1001/archsurg.1950.01250020965018.
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DUPLICATIONS of the alimentary tract in infants present problems in regard to the cause, diagnosis and therapy which still remain the subject of some controversy. They are congenital malformations which have been described in the literature as enterocystoma, enterogenous cysts, giant diverticula, ileum duplex, inclusion cysts, enteric cysts and duplications of the alimentary tract.1

CHARACTERISTICS OF DUPLICATIONS  In the region of the ileocecal valve, the commonest site for their appearance, duplications appear as cysts in the mesentery without continuity with the ileum or as an outpouching or diverticulum, opening into the small intestine. This is in distinction to Meckel's diverticula, which are situated on the antimesenteric border of the intestine.The blood supply is usually common to the duplication and the contiguous bowel (fig. 1). If a cyst is present (cases 1 and 2, table), the contents may vary from a sterile, mucoid, hemorrhagic fluid to pus containing colon bacilli. If there is a


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