Colonic atresia

Last revised by Sonam Vadera on 28 Dec 2022

Colonic atresia is a rare congenital malformation in which parts of colon are absent. Contrary to anal atresia, the anal opening is present. Multiple atretic colonic segments may occur simultaneously.

Contrast enema typically shows no passage of contrast proximal to the most distal atretic colonic segment. Fluoroscopic imaging is unable to elicit multiple colonic atresia or intestinal atresia (if present concurrently).

Surgical correction is needed. Multiple colonic atresia is usually detected intraoperatively. Prognosis is determined by the presence of other associated abnormalities. Patients may have intestinal and pyloric atresia as well.

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