Fig. 11From: MRI for assessment of anal fistulaSagittal T2-weighted image with fat-saturation. The ischioanal abscess (arrowheads) is communicating via a fistula (dotted arrow) to another fistula (hatched arrow). The peri-prostatic vessels and other structures with high-signal intensity on T2-weighted images (solid arrows) can cause confusion if mistaken for fistulasBack to article page