Anal triangle

Last revised by Craig Hacking on 27 Oct 2021

Citation, DOI, disclosures and article data

Citation:

Hacking C, Gilcrease-Garcia B, Anal triangle. Reference article, Radiopaedia.org (Accessed on 24 Apr 2024) https://doi.org/10.53347/rID-58892

DOI:

https://doi.org/10.53347/rID-58892

Permalink:

https://radiopaedia.org/articles/58892?iframe=true

rID:

58892

Article created:

11 Mar 2018, Craig Hacking ◉ ◈

Disclosures:

At the time the article was created Craig Hacking had no recorded disclosures.

Last revised:

27 Oct 2021, Craig Hacking ◉ ◈

Disclosures:

At the time the article was last revised Craig Hacking had no recorded disclosures.

Revisions:

3 times, by 2 contributors - see full revision history and disclosures

Systems:

Gastrointestinal, Urogenital

Sections:

Anatomy

The anal triangle forms the posterior half of the diamond-shaped perineum. The triangle's three corners are defined by the tip of the coccyx posteriorly and both ischial tuberosities anterolaterally. The anterior border is the transverse perineal muscles and the posterolateral borders are the sacrotuberous ligaments.

It contains the anal canal, anal sphincters, and ischioanal fossae with their corresponding vessels.

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