PMC4808679_01
Perineal lump with pits on the surface draining hemo-purulent fluid (Arrow).
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We report a 72 year old gentleman who presented with a 5 year history of an enlarging lump at the perineal region (Fig. 1).
Perineal lump as visualised on MRI (Arrow).
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T2-weighted imaging (Fig. 2). There were also several other transphincteric and intersphincteric fistula tracts identified (Fig. 3).
Sequential coronal sections on MRI showing a fistulous tract (Arrows).
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T2-weighted imaging (Fig. 2). There were also several other transphincteric and intersphincteric fistula tracts identified (Fig. 3).
Sigmoid polyp.
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The aforementioned sigmoid polyp was identified and biopsied Fig. 4).