Perianal fistula: suprasphincteric type
Recurrent perianal pain and yellowish discharge
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Posterior midline fistulous tract seen at 6 o'clock position and ascends in the intersphincteric plane. it penetrates the right levator ani muscle at 8 o'clock position. A small abscess collection is seen at 7 o'clock position.
Grade V supra levator fistula with small abscess.