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The surgical technique is illustrated by an exemplary case of an infant of 10 months of age with two FIA. After placement of seton in a FIA at 3 o’clock, FIA with concomitant perianal abscess at 10 o’clock is explored (A). FIA is identified by the insertion of a bulb-headed lacrimal probe (B). The silicone vessel loop is attached (C) and pulled trough. The loop is ligated loosely outside the anus without any additional tension to the skin (D).
