Complete tubular colonic duplication in an adult: a rare incidental finding and the risk of colonoscopic perforation

Abstract

Gastrointestinal duplications are unusual congenital malformations, nearly always diagnosed in childhood. Roughly 80% are cysts-like lesions and only a small percentage (4-18%) involves the colonic wall. Almost all are asymptomatic and therefore diagnosed as an incidental finding on imaging tests or when become complicated and present with perforation or bleeding. The need for an elective surgical treatment is controversial and should be indicated on an individual basis. This report is a case of an adult with a complete tubular colonic duplication found incidentally by colonoscopy that required surgical treatment due to perforation.

Rectal duplication in an adult cat: a novel transanal surgical approach

“…20 The duplication reported in the present case report would not fully fall under any of these groups, as the duplication was associated with L7 vertebral malformations (type II), although it was partial and spherical, as it did not include the whole rectum (type Ia). Lumbosacral malformations have also been described in humans with colonic duplications, 27 in a dog with a colonic duplication 6 and a cat with a rectal duplication. 14 Because enteric duplication is a rare condition, it is often misdiagnosed prior to referral.…”

“…25 Development of clinical signs during adult age have also been reported. 21,[26][27][28] Both in humans and in domestic animals, the most common clinical signs are related to the location of the duplication. Constipation, tenesmus and rectal prolapse are common signs of duplications of the lower digestive tract.…”

“…3,5,[9][10][11][12][13][14]16 Incidental findings of duplications have also been reported both in the human and veterinary literature. 17,27 Publications of digestive tract duplications in companion animals are scarce. However, among these publications, numerous concomitant malformations have been described.…”

“…26,28 The prognosis for digestive duplications is generally excellent if complete resection of the duplication is achieved. 21,[26][27][28][29] However, incomplete resection of the duplication leads to recurrence of clinical signs, which has been documented in two cases in the veterinary literature. 10,15 The most commonly described surgical technique consists of laparotomy-based procedures: marginal mass resection (debulking), or through enterotomies or enterectomies (en bloc removal).…”

Caecal duplication cyst leading to intussusception in an adult

“…The most recent case report described an ascending colon duplication cyst that presented with abdominal pain 15. A complete colonic duplication in a 55-year-old woman has been also reported 16. A case report of ascending colon duplication with intussusception was also found 17.…”