Ascending complex anal fistula secondary to lower extremity soft tissue infection: a case report - Takeaways - MDSpire

Ascending complex anal fistula secondary to lower extremity soft tissue infection: a case report

  • By

  • Jiyuan Zhang

  • Xiaopeng Ma

  • Liangchen Li

  • Xiaoning Qin

  • Leiran Feng

  • Guiying Wang

  • April 30, 2026

  • 0 min

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  • 1

    A 57-year-old man developed a complex anal fistula with multiple openings after a lower limb soft tissue infection and subsequent debridement.

  • 2

    Imaging studies, including MRI and fistulography, were crucial in delineating the fistula's anatomy and guiding surgical management.

  • 3

    The surgical intervention involved fistulotomy, drainage tube placement, and partial sinus tract excision, resulting in successful outcomes.

  • 4

    Postoperative follow-up at six months showed complete wound healing and preserved anal sphincter function without recurrence.

  • 5

    This case emphasizes the importance of multimodal imaging in managing complex anal fistulas arising from non-traditional infection pathways.

Original Source(s)

Ascending complex anal fistula secondary to lower extremity soft tissue infection: a case report

  • by Jiyuan Zhang, Xiaopeng Ma, Liangchen Li, Xiaoning Qin, Leiran Feng, Guiying Wang

  • April 30, 2026

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