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. 2021 Feb 2;14:33–44. doi: 10.2147/CEG.S291909

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© 2021 Garg et al.

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MRI-axial-STIR sections in a 51-year-old male with low transsphincteric fistula at posterior midline position. The tract is penetrating the external but not the internal sphincter and is not seen opening in anal canal. (Yellow arrows are showing fistula tract).