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Anal canal duplication (ACD) is one of the rarest congenital anomalies of the gastrointestinal tract. It is defined as a second anal or perineal orifice located posterior to the native anus, forming a tubular tract that ends blindly and does not communicate with the anorectum. More than 90% of reported cases occur in females and are typically diagnosed and treated in childhood. However, some cases remain undiagnosed until adulthood, as patients are often asymptomatic and the anomaly may go unnoticed during routine examinations. 1–3