Anteriorly displaced anus is an anomaly that is debated with regard to its nomenclature, diagnosis and management. Pediatr Surg Int ;27 Anterior ectopic anus is a normal looking anus but anteriorly displaced and the external anal sphincter is distributed all around the circumference of the anal canal, including the ventral aspect of the anal canal as was evaluated by preoperative magnetic resonance imaging . In the past, the diagnosis of anterior ectopic anus was based on clinical evaluation. Mid-anal sphincteric malformation, cause of constipation in anterior perineal anus.
To describe MRI anatomy of the anal canal in children with anteriorly displaced anus and its impact on the process of defecation.
Determination of anterior displacement of the anus in newborn infants and children.
This report presents our experience with anterior ectopic anus and describes a modified surgical technique. However, the distal anal canal was displaced anteriorly, running out its external muscle cuff, which remained un-displaced at the usual site of the anus. This incision is deepened and care must be taken not to injure the underlying rectum. A posterior "rectal shelf" is often appreciated on internal digital examination In severe anterior displacement, when the anal opening is located Extreme anterior displacement of the anus may be a form of imperforate anus. This was the case for the majority of our patients who presented beyond the newborn period with variable degrees of constipation. Their records were reviewed for age at presentation, sex, clinical features, diagnosis, management and outcome.