Perianal Abscesses and Fistulas in Infants and Children

Area of Science:

• Pediatric surgery
• Gastroenterology
• Immunology

Background:

• Perianal abscess (PA) and fistula-in-ano (FIA) are frequent conditions in infants.
• The exact cause (pathogenesis) of PA and FIA in this age group is not fully understood.
• While often self-limiting in infants, PA/FIA in older children resembles adult presentations.

Purpose of the Study:

• To review the anatomical considerations, pathogenesis, clinical presentation, and management of PA and FIA in pediatric patients.
• To highlight the importance of differentiating PA/FIA from other conditions like inflammatory bowel disease (IBD) and immunodeficiencies.
• To summarize current evidence and treatment approaches, noting age-dependent variations.

Main Methods:

• This is a review article.
• It synthesizes existing literature on pediatric perianal abscess and fistula-in-ano.
• Information on anatomy, pathogenesis, clinical features, and treatment is compiled.

Main Results:

• PA and FIA are common in infants and typically self-resolve.
• Differential diagnoses including IBD, surgical complications, and immunodeficiencies must be considered.
• Management strategies are empiric, varying with patient age and involving conservative and surgical options.

Conclusions:

• Understanding the unique aspects of PA/FIA in infants versus older children is crucial.
• Accurate diagnosis and age-appropriate, potentially age-dependent, treatment are key.
• Further research into pathogenesis may refine management strategies for pediatric PA and FIA.