title: MRI of perianal fistulas: bridging the radiological-surgical divide.
abstract: Perianal fistula is a clinical entity with multiple surgical treatment options. Recently, magnetic resonance imaging (MRI) has emerged as an important imaging modality in the management of perianal fistulas. It provides accurate description of the fistula within the anal canal in relation to the sphincter complex and other pelvic floor structures as well as the associated complications such as abscess. By understanding the surgical viewpoint, the appearance of perianal fistulas, associated complications, and post-treatment findings of commonly used surgical interventions can more accurately be interpreted to aid clinicians. The objective of the article is to review MRI indications and findings, radiological versus surgical classification schemes, and surgical treatment options for perianal fistulas.
authors.affiliation: Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, JHOC 3235A Radiology, 601 North Caroline Street, Baltimore, MD, 21287, USA.
authors.forename: Kenneth L
authors.initials: KL
authors.lastname: Gage
authors.forename: Swati
authors.initials: S
authors.lastname: Deshmukh
authors.forename: Katarzyna J
authors.initials: KJ
authors.lastname: Macura
authors.forename: Ihab R
authors.initials: IR
authors.lastname: Kamel
authors.forename: Atif
authors.initials: A
authors.lastname: Zaheer
mesh_terms: D003287:Contrast Media; D005401:Fissure in Ano / Q000175:diagnosis* / Q000601:surgery*; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D012003:Rectal Fistula / Q000175:diagnosis* / Q000601:surgery*
chemical_list: D003287:Contrast Media