Fig. 2From: Anal fistula metastasis of rectal cancer after neoadjuvant therapy: a case reportT2-weighted magnetic resonance imaging of the anal fistula. A Image obtained before preoperative chemoradiation therapy. No anal fistulas are observed. B, C Image shows a high-intensity anal fistula after chemoradiation therapy, located from the anal crypt to the skin behind the anus (arrows)Back to article page