Clinical Report: Complex Anal Fistula with Ascending Pathway Case Study

Overview

Revise to better explain the connection between the lower limb infection and the anal fistula.

Background

Complex anal fistulas pose significant surgical challenges due to their complex anatomy and high recurrence rates. Accurate preoperative imaging is crucial for effective surgical planning and management. This case highlights the importance of understanding the anatomical pathways involved in complex anal fistulas, particularly those associated with infections in other body regions.

Data Highlights

No numerical data available.

Key Findings

• A 57-year-old man presented with a complex anal fistula following a lower limb soft tissue infection.
• Imaging (MRI and fistulography) revealed multiple sinus tracts extending from the gluteal region to the anal canal.
• Surgical intervention included fistulotomy and drainage tube placement, with minimal intraoperative blood loss.
• Postoperative follow-up at six months showed complete wound healing and normal anal sphincter function.
• This case underscores the role of multimodal imaging in preoperative assessment of complex anal fistulas.

Clinical Implications

Healthcare professionals should consider the use of advanced imaging techniques in the management of complex anal fistulas to ensure accurate surgical planning. Successful outcomes can be achieved with careful surgical techniques that preserve sphincter function.

Conclusion

This case illustrates the successful management of a complex anal fistula with a unique presentation, emphasizing the importance of multimodal imaging and tailored surgical approaches.

References

1. Techniques in Coloproctology, 2022 -- Utilization of the Advancement Flap Method for Managing a Rare Complex Anal Fistula Accompanied by a Synovial Cyst at the Ischial Tuberosity
2. Techniques in Coloproctology, 2025 -- Transanal Advancement Flap Technique in a Female with Anterior Transsphincteric Anal Fistula: A Video Presentation
3. The IFTAK Method: A Minimally Invasive Approach to Managing Recurrent Fistula-in-Ano - Analysis of Case Series
4. International Journal of Colorectal Disease, 2026 -- Histological architecture of the intersphincteric region of the anal canal: implications for the anatomical basis of anal fistula pathways
5. Frontiers, 2025 -- Diagnosis and treatment for anal fistula: a systematic review of clinical practice guidelines and consensus statements
6. Techniques in Coloproctology, 2025 -- Failure rates and complications of four sphincter-sparing techniques for the treatment of fistula-in-ano: a systematic review and network meta-analysis
7. Contemporary guidance on complex cryptoglandular fistulas
8. Failure rates and complications of four sphincter-sparing techniques for the treatment of fistula-in-ano: a systematic review and network meta-analysis | Techniques in Coloproctology | Springer Nature Link
9. Complex perianal abscess: a case report of shooting from the hip | Journal of Surgical Case Reports | Oxford Academic