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Perianal Fistula

Pelvic MRI can determine the course of a perianal fistula, defining its relation to the internal sphincter, external sphincter, ischiorectal fossa, and levator ani. Additionally, associated abscesses can be detected and characterized.

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  1. Dwarkasing S, Hussain SM, Krestin GP. Magnetic resonance imaging of perianal fistulas. Semin Ultrasound CT MR 2005; 26:247-258. PubMed link
  2. Ziech M, Felt-Bersma R, Stoker J. Imaging of perianal fistulas. Clin Gastroenterol Hepatol 2009; 7:1037-1045. PubMed link
  3. de Miguel Criado J, et al. MR imaging evaluation of perianal fistulas: spectrum of imaging features. RadioGraphics 2012; 32:175-94. PubMed link