RT Book, Section A1 Calkins, Casey M. A1 Sood, Manu R. A2 Kline, Mark W. SR Print(0) ID 1182908739 T1 Congenital Anomalies of the Anorectum T2 Rudolph's Pediatrics, 23e YR 2018 FD 2018 PB McGraw-Hill Education PP New York, NY SN 9781259588594 LK accesspediatrics.mhmedical.com/content.aspx?aid=1182908739 RD 2024/11/04 AB The spectrum of anorectal malformations (ARMs) ranges from anal stenosis to persistent cloaca. The term imperforate anus applies to the vast majority of these malformations, whereby the anal canal is malformed and there is no visible normal anal opening onto the perineum.