Korean Journal of Radiology

The Korean Society of Radiology (대한영상의학회)
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Cancer of the Anal Canal: Diagnosis, Staging and Follow-Up with MRI

  • Durot, Carole (Department of Radiology, Centre Hospitalo-Universitaire de Reims) ;
  • Dohan, Anthony (Department of Abdominal Imaging, Hopital Lariboisiere-APHP) ;
  • Boudiaf, Mourad (Department of Abdominal Imaging, Hopital Lariboisiere-APHP) ;
  • Servois, Vincent (Department of Radiology and Nuclear Medicine, Institut Curie) ;
  • Soyer, Philippe (Department of Abdominal Imaging, Hopital Lariboisiere-APHP) ;
  • Hoeffel, Christine (Department of Radiology, Centre Hospitalo-Universitaire de Reims)
  • Received : 2017.01.19
  • Accepted : 2017.03.26
  • Published : 2017.12.01
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Abstract

Although a rare disease, anal cancer is increasingly being diagnosed in patients with risk factors, mainly anal infection with the human papilloma virus. Magnetic resonance imaging (MRI) with external phased-array coils is recommended as the imaging modality of choice to grade anal cancers and to evaluate the response assessment after chemoradiotherapy, with a high contrast and good anatomic resolution of the anal canal. MRI provides a performant evaluation of size, extent and signal characteristics of the anal tumor before and after treatment, as well as lymph node involvement and extension to the adjacent organs. MRI is also particularly helpful in the assessment of complications after treatment, and in the diagnosis for relapse of the diseases.

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