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Perianal fistula - intersphincteric

Case contributed by Bahman Rasuli
Diagnosis almost certain


Anal pain and perianal discharge.

Patient Data

Age: 55 years
Gender: Male

A 26 mm thin-walled tract starts at the right perianal region and courses upwards between internal and external anal sphincters to open into the anal canal at 6 o’clock orientation.

Case Discussion

Right-sided inter-sphincteric perianal fistula as described.

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