PMC2892652_01
The pelvic MRI of the patient demonstrating the suprasphincteric fistula in ano with abscess formation (arrows).
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fig1
Pelvic magnetic resonance imaging (MRI) performed in a different medical center eight months prior to his admission demonstrated an abscess cavity, measuring 2 cm in diameter, located superior to the levator ani muscle and its tract of 10 cm coursing from its internal opening in the rectum down to the perianal region (Figure 1).
Intraoperative view of the external openings of the fistula in ano (arrow-heads) and the upper part of the tract where the foreign material resided (arrow). The extracted nonabsorbable braided thread is shown in the inlet figure.
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fig2
A nonabsorbable braided thread of 5 cm in length and 6 mm in thickness was extracted (Figure 2).
Postoperative view.
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fig3
After partial excision and curretage of the tract, a penrose drain was placed and the wound was closed with interrupted simple absorbable sutures (Figure 3).