Perianal fistula - complex

Case contributed by Marina Goymer
Diagnosis certain

Presentation

History of complex anal fistula not resolving

Patient Data

Gender: Male
mri

Tract extends superiorly within the ischioanal fat on the left side, involving the puborectalis muscle. At the level of the anal sphincter at 3 o'clock there is a further tract which penetrates the external sphincter and extends toward the 6 o'clock position.

Acquired on 1.5 T Toshiba Titan.

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