Congenital and Developmental Disorders of the GI Tract

The Ileoileal intussusception due to a tubular duplication in a child: A case report

“…Duplications of the small intestine are common in the ileum and can be cystic or tubular. They differ from Meckel's diverticulum in that they are mostly linked to the mesenteric region of the intestine and consist of two parts as follows: an outer layer of smooth muscle and an inner lining of the gastrointestinal epithelium 2,10,12–14 …”

“…3 Small intestinal duplication is a rare congenital malformation characterized by a tubular or cystic structure that shares its muscular wall and blood supply with the adjacent intestine, primarily the ileum. [10][11][12][13] This study describes a 4-year-old girl with a complicated ileoileal intussusception caused by a tubular ileal duplication.…”

Tubular colonic duplication in an adult patient with long-standing history of constipation and tenesmus

“…Anatomically, they are directly contiguous with the segment of the intestine from which they are associated. 10 Intestinal duplications are "true" duplications where there is a complete or partial formation of a second bowel lumen (doubling) of variable length either communicating with or not with the adjacent native bowel lumen (proximally or A -Broad-based diverticulum is seen in the sigmoid colon likely presenting a tubular duplicated colon that shares a common opening with the sigmoid colon; B -Gross pathologic examination of the resected segment of the sigmoid colon shows a longitudinal outpouching located at 4.3 cm away from the closest resection margin, making a 30-degree angle with the sigmoid colon segment, and measuring 7.3 cm in length and 2.6 cm in average diameter (scale bar = 5 cm); C and D -The colon segment is opened to reveal tan pink mucosa with appropriate colonic mucosal folds in both the sigmoid colon and colonic duplication segments (scale bars = 5 cm). distally).…”

Ileal Duplication Cyst Presenting With Acute Abdomen at Adult Age: Report of a Rare Case and a Review of the Literature

“…11 However, it was reported elsewhere that the wall of a duplication cyst is generally formed by thick and orderly shaped muscle layers, whereas the epithelium lining its inner surface may be of a gastric, intestinal, or respiratory variety and contain heterotopic pancreatic remnants. 12 A duplication cyst may have a cystic or tubular pattern, although it is usually cystic. It has no connection with intestines, although it may share a common wall and circulation with the intestinal system.…”