Abstract
Anal canal duplication (ACD) is the least frequent digestive duplication. Symptoms are often absent but tend to increase with age. Recognition is, however, important as almost half of the patients with ACD have concomitant malformations. We present the clinical history of an eleven-year-old girl with ACD followed by a review of symptoms, diagnosis, treatment, and prognosis based on all the reported cases in English literature.
Highlights
Anal canal duplication (ACD) is the least frequent digestive duplication
We present the clinical history of an eleven-year-old girl with ACD followed by a review of symptoms, diagnosis, treatment, and prognosis based on all the reported cases in English literature
The anal canal appeared normal, with normal anal reflexes. This extra orifice had been observed at birth, with an expectative management advised in her native country
Summary
ACD is the least frequent digestive duplication It presents itself as an extra perineal orifice located just behind the anus. Histology gives diagnostic certainty describing 3 characteristics of ACD: squamous epithelium in the caudal end, transitional epithelium in the cranial end and smooth-muscle cells in the wall of the canal [1, 2]. It is most frequently a tubular (90%) anomaly without communication to the rectum. Parents or caregivers notice a perianal orifice posterior to the anus Mild symptoms such as anal pain, pruritus, mucous discharge and constipation are present in one third of the patients.
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