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02:03, 13 July 2019 {{Top
|author1=[[User:Rhcastilhos|Rodrigo Horstmann Castilhos]]
|author2=
}}
== Techinique ==
*Edema sequences: STIR, T2 FS
*Enhancement sequence: T1 FS
== Types ==
* Intersphincteric
* Transsphincteric
* Suprasphincteric
* Extrasphincteric
== Complexity==
*Simple
*Complex
== Characteristics ==
* Internal opening: location (clock), high vs low.
* External opening: location (clock), location (perineum, natal cleft), distance to anal margin
* Involvement of other structures
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<references />
[[Category:MRI]]
[[Category:Rectum]]