Fig. 2From: Resection of anorectal fistula cancer associated with Crohn’s disease after preoperative chemoradiotherapy: a case reportT2-weighted magnetic resonance imaging of the anorectal fistula cancer. Infiltration into the prostate, seminal vesicles, levator ani muscle, and left internal obturator muscle was revealed in the region surrounded by the red dotted line (a–c). After chemoradiotherapy, the tumor had slightly shrunk with stable disease as defined by the revised RECIST guidelines (version 1.1) (d–f)Back to article page