Peña classificationA classification of anorectal malformations (ARMs), proposed by Peña et al in 1995, which is based on the type of the fistula present and offers several advantages over the Wingspread classification.
Peña classification of ARMs
• Perineal, vestibular, bulbar, postatic and bladder neck fistulas.
• Imperforate anus without fistula.
• Vaginal fistulas.
• Cloacal fistulas.
• Rectal atresia or stenosis.