Anal fistula classification: Difference between revisions
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Anal fistulas are classified into the four types based on the location of sphincter: | Anal fistulas are classified into the four types based on the location of sphincter: | ||
*Intersphincteric: Starts from dentate line ending in the perianal skin. | *Intersphincteric: Starts from dentate line ending in the perianal skin. | ||
*Transsphincteric: Starts from the external sphincter going along a portion of the internal and external sphincter | *Transsphincteric: Starts from the external sphincter, going along a portion of the internal and external sphincter and ending in the skin overlying buttocks. | ||
*Suprasphincteric: Starts from the anal crypt and ends in the ischiorectal fossa. | *Suprasphincteric: Starts from the anal crypt and ends in the ischiorectal fossa. | ||
*Extrasphincteric | *Extrasphincteric: Starts high in the anal canal and ending in the skin overlying the buttocks. | ||
==References== | ==References== |
Revision as of 17:56, 15 January 2018
Anal fistula Microchapters |
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Anal fistula classification On the Web |
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Manpreet Kaur, MD [2]
Overview
Classification
Anal fistulas are classified into the four types based on the location of sphincter:
- Intersphincteric: Starts from dentate line ending in the perianal skin.
- Transsphincteric: Starts from the external sphincter, going along a portion of the internal and external sphincter and ending in the skin overlying buttocks.
- Suprasphincteric: Starts from the anal crypt and ends in the ischiorectal fossa.
- Extrasphincteric: Starts high in the anal canal and ending in the skin overlying the buttocks.