Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Grade 3 perianal fistula; transsphincteric fistula without an abscess. Axial T1-weighted (A) and T2-weighted (B), axial (C) and coronal (D) contrast-enhanced fat-suppressed T1-weighted MR images show the transsphincteric fistula (arrows) crossing the external sphincter. Axial (C), and coronal (D) contrast-enhanced fat-suppressed T1-weighted MR images show the highly enhancing transsphincteric fistula (arrows).
