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Published on: November 30, 2010
Rethinking congenital anal stenosis: a systematic review with histological observations toward a revised conceptual
Masahiro Takeda1, Ryoichi Abiko2,3, Yuichiro Miyake2
1Department of Pediatric Surgery, Juntendo University School of Medicine, Tokyo, Japan. mstakeda@juntendo.ac.jp.
Pediatric Surgery International
|July 23, 2026
Summary
Congenital anal stenosis is poorly defined. This study suggests distinguishing skin-level anal stenosis from anorectal stenosis for better management and understanding of this condition.
Area of Science:
- Pediatric Surgery
- Gastroenterology
- Anatomic Pathology
Background:
- Congenital anal stenosis is an umbrella term for various conditions.
- Current definitions lack clarity regarding distinct pathologies and treatments.
Purpose of the Study:
- To re-evaluate the concept of congenital anal stenosis.
- To differentiate between skin-level anal stenosis and anorectal stenosis.
Main Methods:
- Systematic review of English-language publications on congenital anal stenosis.
- Histological examination of surgical specimens from two cases.
Main Results:
- 50 of 70 cases without Currarino syndrome responded well to conservative treatment.
- 20 cases (28.6%) with Currarino syndrome required more invasive procedures.
- Histopathology revealed dense fibrosis in skin-level anal stenosis.
Conclusions:
- Congenital anal stenosis requires redefinition.
- Congenital skin-level anal stenosis should be distinguished from anorectal stenosis.
- Further studies are needed to validate this distinction.
