Magnetic resonance imaging of perianal fistulas.
Perianal fistulization is the result of a chronic inflammation of the perianal tissues. A wide spectrum of clinical manifestations, ranging from simple to complex fistulas, can be seen, the latter especially in patients with Crohn disease. Failure to detect secondary tracks and hidden abscesses may lead to therapeutic failure, such as insufficient response to medical treatment and relapse after surgery. Currently, magnetic resonance (MR) imaging is the preferred technique for evaluating perianal fistulas and associated complications. Initially used most often in the preoperative setting, MR imaging now also plays an important role in evaluating the response to medical therapy.
Department of Radiology, University Hospitals Leuven, Herestraat 49, Leuven B-3000, Belgium. Electronic address: dirk.vanbeckevoort@uzleuven.be.
Dirk
D
Vanbeckevoort
Didier
D
Bielen
Ragna
R
Vanslembrouck
Gert
G
Van Assche
D001003:Anal Canal / Q000473:pathology*; D004751:Enteritis / Q000150:complications* / Q000473:pathology* / Q000517:prevention & control; D006801:Humans; D007089:Image Enhancement / Q000379:methods*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D011300:Preoperative Care / Q000379:methods; D012003:Rectal Fistula / Q000209:etiology* / Q000473:pathology* / Q000601:surgery
Crohn disease; Fistula; MR imaging; Perianal