Perianal fistula - intersphincteric type

Case contributed by Bahman Rasuli
Diagnosis almost certain

Presentation

Acute onset of perianal pain and discharge.

Patient Data

Age: 35 years
Gender: Male
This study is a stack
Axial
T2
This study is a stack
Axial T2
fat sat
This study is a stack
Axial
T1
This study is a stack
Axial T1
C+ fat sat
This study is a stack
Coronal
T1
This study is a stack
Coronal T2
fat sat
This study is a stack
Coronal T1
C+ fat sat
This study is a stack
Sagittal
T2
This study is a stack
Sagittal T1
C+ fat sat
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Info

A 38 mm thin-walled tract starts superficially at the left perianal region and courses superiorly between internal and external anal sphincters to open into the anal canal at 12 o’clock orientation.

No abscess formation is seen.

Case Discussion

Grade I low-type intersphincteric perianal fistula without evidence of the perianal abscess.

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